diff --git a/src/apps/dashboard/static/apps/dashboard/wallet-shop.js b/src/apps/dashboard/static/apps/dashboard/wallet-shop.js
new file mode 100644
index 0000000..50e70aa
--- /dev/null
+++ b/src/apps/dashboard/static/apps/dashboard/wallet-shop.js
@@ -0,0 +1,123 @@
+// wallet-shop.js — BUY-ITEM click handler for the wallet's Shop applet.
+//
+// Flow:
+//   1. User clicks a `.tt-buy-btn` inside a `.shop-tile`.
+//   2. We open the global guard portal (`window.showGuard`) w. a prompt
+//      naming the item + price.
+//   3. On OK confirm → POST /dashboard/wallet/shop/buy {shop_item_slug} →
+//      get {client_secret, purchase_id}.
+//   4. Stripe.js confirmCardPayment (handles 3DS natively).
+//   5. On Stripe success → POST /dashboard/wallet/shop/confirm {purchase_id}.
+//   6. Reload the wallet (tokens + balances update server-side via the
+//      Purchase.fulfill() chain that fires from BOTH /shop/confirm AND
+//      the /stripe/webhook handler — whichever lands first, idempotent).
+//
+// Disabled tiles (`.btn-disabled` on the BUY btn — eg already-owned BAND)
+// are a no-op: clicks don't open the guard portal.
+//
+// Module pattern matches the rest of the project (`Brief`, `SeaDeal`,
+// `StageCard`) — exposes a singleton `WalletShop` w. a tested public
+// `initWalletShop()` method.
+
+const WalletShop = (function () {
+    'use strict';
+
+    function _getCsrf() {
+        const m = document.cookie.match(/csrftoken=([^;]+)/);
+        return m ? m[1] : '';
+    }
+
+    async function _doBuy(slug, btn, shopRoot) {
+        const pmId = shopRoot.dataset.defaultPaymentMethodId || '';
+        const pubKey = shopRoot.dataset.stripePublishableKey || '';
+        if (!pmId) {
+            // No saved payment method — surface a friendly message + bail.
+            // (Server-side this would 402, but we'd rather not waste the
+            // round trip OR confuse the user w. a stripe-side error.)
+            alert('Add a payment method below first.');
+            return;
+        }
+        const buyRes = await fetch('/dashboard/wallet/shop/buy', {
+            method: 'POST',
+            headers: {
+                'X-CSRFToken': _getCsrf(),
+                'Content-Type': 'application/x-www-form-urlencoded',
+            },
+            body: 'shop_item_slug=' + encodeURIComponent(slug),
+        });
+        if (!buyRes.ok) {
+            alert('Could not start purchase (' + buyRes.status + ').');
+            return;
+        }
+        const { client_secret, purchase_id } = await buyRes.json();
+        const stripe = window.Stripe(pubKey);
+        const { error, paymentIntent } = await stripe.confirmCardPayment(
+            client_secret, { payment_method: pmId },
+        );
+        if (error) {
+            alert('Payment failed: ' + (error.message || 'unknown error'));
+            return;
+        }
+        if (paymentIntent && paymentIntent.status === 'succeeded') {
+            // Sync-confirm endpoint: belt-and-suspenders w. the webhook —
+            // whichever lands first wins via Purchase.fulfill()'s idempotent
+            // status guard. We always call it for the snappy UX.
+            await fetch('/dashboard/wallet/shop/confirm', {
+                method: 'POST',
+                headers: {
+                    'X-CSRFToken': _getCsrf(),
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                },
+                body: 'purchase_id=' + encodeURIComponent(purchase_id),
+            });
+            // Reload to refresh the Tokens + Balances applets w. the
+            // freshly-minted tokens + writs.
+            window.location.reload();
+        }
+    }
+
+    function _onBuyClick(e) {
+        const btn = e.target.closest('.tt-buy-btn');
+        if (!btn) return;
+        if (btn.classList.contains('btn-disabled')) return;
+        e.preventDefault();
+        e.stopPropagation();
+        const tile = btn.closest('.shop-tile');
+        if (!tile) return;
+        const shopRoot = btn.closest('.wallet-shop');
+        if (!shopRoot) return;
+        const slug = btn.dataset.shopItemSlug || tile.dataset.shopItemSlug;
+        const name = tile.dataset.itemName || slug;
+        const priceCents = parseInt(tile.dataset.priceCents || '0', 10);
+        // Render "$1" / "$4" / "$20.50" — trim ".00" for whole-dollar prices.
+        const dollars = priceCents / 100;
+        const priceStr = (dollars === Math.floor(dollars))
+            ? '$' + dollars
+            : '$' + dollars.toFixed(2);
+        const message = 'Buy ' + name + ' for ' + priceStr + '?';
+        if (typeof window.showGuard === 'function') {
+            window.showGuard(btn, message, function () {
+                _doBuy(slug, btn, shopRoot);
+            });
+        }
+    }
+
+    function initWalletShop() {
+        const shopRoot = document.querySelector('.wallet-shop');
+        if (!shopRoot) return;
+        // Wired-state is DOM-keyed (`data-shop-wired`) rather than a
+        // module-scope flag so per-test fixture rebuilds re-wire cleanly.
+        // Calling twice on the SAME root is still a safe no-op (idempotent).
+        if (shopRoot.dataset.shopWired === '1') return;
+        // Single delegated click listener at the shop-root level so the
+        // microtooltip-portal (rendered outside the tile by the portal
+        // tooltip pattern in `wallet.js`) still hits this handler when
+        // the buy btn is hovered into a portaled position.
+        shopRoot.addEventListener('click', _onBuyClick);
+        shopRoot.dataset.shopWired = '1';
+    }
+
+    return { initWalletShop: initWalletShop };
+})();
+
+document.addEventListener('DOMContentLoaded', WalletShop.initWalletShop);
diff --git a/src/apps/dashboard/views.py b/src/apps/dashboard/views.py
index feb35da..4b23aa3 100644
--- a/src/apps/dashboard/views.py
+++ b/src/apps/dashboard/views.py
@@ -155,6 +155,18 @@ def toggle_applets(request):
         })
     return redirect("home")
 
+def _shop_items_for(user):
+    """Decorate the active ShopItem catalog w. per-user availability so the
+    template can render `.btn-disabled` + 'Already owned' microtooltip
+    for `max_owned`-capped items the user already holds. Items are returned
+    in `display_order` ASC (matches the seeded `tithe-1` < `tithe-5` < `band-1`)."""
+    items = []
+    for item in ShopItem.objects.filter(active=True).order_by("display_order", "slug"):
+        item.available = item.is_available_for(user)
+        items.append(item)
+    return items
+
+
 @login_required(login_url="/")
 @ensure_csrf_cookie
 def wallet(request):
@@ -162,12 +174,17 @@ def wallet(request):
         token_type=Token.FREE, expires_at__gt=timezone.now()
     ).order_by("expires_at"))
     tithe_tokens = list(request.user.tokens.filter(token_type=Token.TITHE))
+    shop_items = _shop_items_for(request.user)
+    default_pm = request.user.payment_methods.order_by("-pk").first()
     return render(request, "apps/dashboard/wallet.html", {
         "wallet": request.user.wallet,
         "pass_token": request.user.tokens.filter(token_type=Token.PASS).first() if request.user.is_staff else None,
         "band": request.user.tokens.filter(token_type=Token.BAND).first(),
         "coin": request.user.tokens.filter(token_type=Token.COIN).first(),
         "carte": request.user.tokens.filter(token_type=Token.CARTE).first(),
+        "shop_items": shop_items,
+        "default_payment_method_id": default_pm.stripe_pm_id if default_pm else "",
+        "stripe_publishable_key": settings.STRIPE_PUBLISHABLE_KEY,
         "free_tokens": free_tokens,
         "tithe_tokens": tithe_tokens,
         "free_count": len(free_tokens),
@@ -199,6 +216,7 @@ def toggle_wallet_applets(request):
     checked = request.POST.getlist("applets")
     apply_applet_toggle(request.user, "wallet", checked)
     if request.headers.get("HX-Request"):
+        default_pm = request.user.payment_methods.order_by("-pk").first()
         return render(request, "apps/wallet/_partials/_applets.html", {
             "applets": applet_context(request.user, "wallet"),
             "wallet": request.user.wallet,
@@ -206,6 +224,9 @@ def toggle_wallet_applets(request):
             "band": request.user.tokens.filter(token_type=Token.BAND).first(),
             "coin": request.user.tokens.filter(token_type=Token.COIN).first(),
             "carte": request.user.tokens.filter(token_type=Token.CARTE).first(),
+            "shop_items": _shop_items_for(request.user),
+            "default_payment_method_id": default_pm.stripe_pm_id if default_pm else "",
+            "stripe_publishable_key": settings.STRIPE_PUBLISHABLE_KEY,
             "free_tokens": list(request.user.tokens.filter(token_type=Token.FREE)),
             "tithe_tokens": list(request.user.tokens.filter(token_type=Token.TITHE)),
         })
diff --git a/src/functional_tests/test_dash_wallet.py b/src/functional_tests/test_dash_wallet.py
index c4c44c7..9c73055 100644
--- a/src/functional_tests/test_dash_wallet.py
+++ b/src/functional_tests/test_dash_wallet.py
@@ -3,7 +3,7 @@ from selenium.webdriver.common.by import By
 
 from .base import FunctionalTest
 from apps.applets.models import Applet
-from apps.lyric.models import Token, User
+from apps.lyric.models import ShopItem, Token, User
 
 
 class WalletDisplayTest(FunctionalTest):
@@ -14,11 +14,47 @@ class WalletDisplayTest(FunctionalTest):
             ("wallet-balances", "Wallet Balances", 3, 3),
             ("wallet-tokens",   "Wallet Tokens",   3, 3),
             ("wallet-payment",  "Payment Methods", 6, 3),
+            ("wallet-shop",     "Shop",           12, 3),
         ]:
             Applet.objects.get_or_create(
                 slug=slug,
                 defaults={"name": name, "grid_cols": cols, "grid_rows": rows, "context": "wallet"},
             )
+        # Seed the 3 starting ShopItems — migration `lyric/0009_seed_shop_items`
+        # populates these in fresh DBs, but FTs run on `TransactionTestCase`
+        # which wipes all data between tests (post-migrate signal pollution
+        # doesn't restore RunPython-seeded rows). Mirror the migration's
+        # locked row shapes here.
+        ShopItem.objects.update_or_create(
+            slug="tithe-1",
+            defaults={
+                "name": "Tithe Token", "description": "1 Tithe + 144 Writs",
+                "icon": "fa-piggy-bank", "badge_text": "",
+                "price_cents": 100, "granted_token_type": Token.TITHE,
+                "granted_count": 1, "granted_writs": 144,
+                "max_owned": None, "display_order": 10, "active": True,
+            },
+        )
+        ShopItem.objects.update_or_create(
+            slug="tithe-5",
+            defaults={
+                "name": "Tithe Bundle", "description": "5 Tithe Tokens + 750 Writs",
+                "icon": "fa-piggy-bank", "badge_text": "×5",
+                "price_cents": 400, "granted_token_type": Token.TITHE,
+                "granted_count": 5, "granted_writs": 750,
+                "max_owned": None, "display_order": 20, "active": True,
+            },
+        )
+        ShopItem.objects.update_or_create(
+            slug="band-1",
+            defaults={
+                "name": "Wristband", "description": "Admit All Entry",
+                "icon": "fa-ring", "badge_text": "",
+                "price_cents": 2000, "granted_token_type": Token.BAND,
+                "granted_count": 1, "granted_writs": 0,
+                "max_owned": 1, "display_order": 30, "active": True,
+            },
+        )
 
     def test_new_user_wallet_shows_starting_balances(self):
         # 1. Log in as new user
@@ -224,6 +260,94 @@ class WalletDisplayTest(FunctionalTest):
         self.assertIn("no expiry", carte_tt)
 
 
+    def test_shop_applet_renders_seeded_items_with_icons_and_badges(self):
+        """Chunk 4 of [[project-wallet-shop-expansion]] — the new Shop
+        applet renders the 3 seeded items (`tithe-1`, `tithe-5`, `band-1`)
+        as tooltipped tiles. The bundle (`tithe-5`) carries a `×5` badge;
+        the single-tithe + band tiles render without a badge.
+
+        Pinned visual contract: tile presence (id), icon class, badge text,
+        and price text inside the tooltip prose."""
+        self.create_pre_authenticated_session("capman@test.io")
+        self.browser.get(self.live_server_url + "/dashboard/wallet/")
+        # 1. Shop applet is present
+        self.wait_for(lambda: self.browser.find_element(By.ID, "id_wallet_shop"))
+        # 2. Each of the 3 seeded items renders w. its own tile
+        tithe1 = self.browser.find_element(By.ID, "id_shop_tithe-1")
+        tithe5 = self.browser.find_element(By.ID, "id_shop_tithe-5")
+        band1 = self.browser.find_element(By.ID, "id_shop_band-1")
+        # 3. Icons are correct
+        self.assertIn("fa-piggy-bank", tithe1.find_element(By.CSS_SELECTOR, "i").get_attribute("class"))
+        self.assertIn("fa-piggy-bank", tithe5.find_element(By.CSS_SELECTOR, "i").get_attribute("class"))
+        self.assertIn("fa-ring",       band1.find_element(By.CSS_SELECTOR, "i").get_attribute("class"))
+        # 4. Bundle carries the ×5 badge; singles don't
+        self.assertIn("×5", tithe5.find_element(By.CSS_SELECTOR, ".shop-badge").text)
+        self.assertEqual(tithe1.find_elements(By.CSS_SELECTOR, ".shop-badge"), [])
+        self.assertEqual(band1.find_elements(By.CSS_SELECTOR, ".shop-badge"), [])
+        # 5. Tooltip prose includes name + price (read .tt innerHTML directly
+        #    — hover→portal cloning is already exercised by the existing
+        #    COIN/FREE hover tests).
+        tithe1_tt = tithe1.find_element(By.CSS_SELECTOR, ".tt").get_attribute("innerHTML")
+        self.assertIn("Tithe Token", tithe1_tt)
+        self.assertIn("$1", tithe1_tt)
+        band1_tt = band1.find_element(By.CSS_SELECTOR, ".tt").get_attribute("innerHTML")
+        self.assertIn("Wristband", band1_tt)
+        self.assertIn("$20", band1_tt)
+
+    def test_shop_buy_click_opens_guard_portal_with_purchase_prompt(self):
+        """BUY ITEM click opens `#id_guard_portal` w. an 'Are you sure?'-style
+        prompt naming the item + price. Click NVM dismisses; click OK
+        triggers the Stripe.js dance (mocked out / deferred to a follow-up
+        FT)."""
+        self.create_pre_authenticated_session("capman@test.io")
+        self.browser.get(self.live_server_url + "/dashboard/wallet/")
+        self.wait_for(lambda: self.browser.find_element(By.ID, "id_wallet_shop"))
+        # 1. Find BUY ITEM btn inside the tithe-1 tile's microtooltip
+        buy_btn = self.browser.find_element(
+            By.CSS_SELECTOR, "#id_shop_tithe-1 .tt-buy-btn"
+        )
+        # 2. Click it via JS (microtooltip lives in the portal layer + may
+        #    not be hover-visible during Selenium's strict-target check)
+        self.browser.execute_script("arguments[0].click();", buy_btn)
+        # 3. Guard portal opens w. a prompt mentioning Tithe + $1
+        portal = self.wait_for(
+            lambda: self.browser.find_element(By.ID, "id_guard_portal")
+        )
+        self.wait_for(
+            lambda: self.assertIn("active", portal.get_attribute("class"))
+        )
+        msg = portal.find_element(By.CSS_SELECTOR, ".guard-message").text
+        self.assertIn("Tithe", msg)
+        self.assertIn("$1", msg)
+        # 4. NVM dismisses
+        portal.find_element(By.CSS_SELECTOR, ".guard-no").click()
+        self.wait_for(
+            lambda: self.assertNotIn("active", portal.get_attribute("class"))
+        )
+
+    def test_shop_band_already_owned_shows_disabled_buy_btn(self):
+        """User who already owns 1 BAND (`max_owned=1`) sees the band-1
+        tile w. its BUY btn disabled + an 'Already owned' microtooltip
+        — visible-but-unbuyable per the decision in [[project-wallet-
+        shop-expansion]]."""
+        owner = User.objects.create(email="bander@test.io")
+        Token.objects.create(user=owner, token_type=Token.BAND)
+        self.create_pre_authenticated_session("bander@test.io")
+        self.browser.get(self.live_server_url + "/dashboard/wallet/")
+        self.wait_for(lambda: self.browser.find_element(By.ID, "id_wallet_shop"))
+        band_tile = self.browser.find_element(By.ID, "id_shop_band-1")
+        # BUY btn rendered as `.btn-disabled` w. × glyph (parity w. game-
+        # kit's disabled DON/DOFF buttons). Read via `textContent` because
+        # `.tt` is `display: none` by default + Selenium's `.text` returns
+        # empty for hidden subtrees.
+        buy_btn = band_tile.find_element(By.CSS_SELECTOR, ".tt-buy-btn")
+        self.assertIn("btn-disabled", buy_btn.get_attribute("class"))
+        self.assertEqual(buy_btn.get_attribute("textContent").strip(), "×")
+        # Microtooltip swap signals why it's disabled
+        tt_html = band_tile.find_element(By.CSS_SELECTOR, ".tt").get_attribute("innerHTML")
+        self.assertIn("Already owned", tt_html)
+
+
     def test_user_can_purchase_tithe_token_bundle(self):
         # 1. Log in, navigate to wallet page
         self.create_pre_authenticated_session("capman@test.io")
diff --git a/src/static/tests/SpecRunner.html b/src/static/tests/SpecRunner.html
index 87819f0..41adf9f 100644
--- a/src/static/tests/SpecRunner.html
+++ b/src/static/tests/SpecRunner.html
@@ -29,10 +29,12 @@
     <script src="NoteSpec.js"></script>
     <script src="NotePageSpec.js"></script>
     <script src="RowLockSpec.js"></script>
+    <script src="WalletShopSpec.js"></script>
     <!-- src files -->
     <script src="/static/apps/applets/row-lock.js"></script>
     <script src="/static/apps/dashboard/dashboard.js"></script>
     <script src="/static/apps/dashboard/note.js"></script>
+    <script src="/static/apps/dashboard/wallet-shop.js"></script>
     <script src="/static/apps/billboard/note-page.js"></script>
     <script src="/static/apps/epic/stage-card.js"></script>
     <script src="/static/apps/epic/role-select.js"></script>
diff --git a/src/static/tests/WalletShopSpec.js b/src/static/tests/WalletShopSpec.js
new file mode 100644
index 0000000..9a2d818
--- /dev/null
+++ b/src/static/tests/WalletShopSpec.js
@@ -0,0 +1,161 @@
+// ── WalletShopSpec.js ────────────────────────────────────────────────────────
+//
+// Unit specs for wallet-shop.js — the BUY-ITEM click handler that drives
+// the shop applet's purchase flow (Chunk 4 of the wallet-expansion sprint).
+//
+// DOM contract assumed by `initWalletShop()`:
+//
+//   Each shop tile carries `data-shop-item-slug`, `data-price-cents`, and
+//   `data-item-name`. Inside the tile, a `.tt-buy-btn` element is the
+//   click target. Disabled tiles have `.btn-disabled` on the BUY btn +
+//   should NOT trigger the buy flow.
+//
+//   `window.showGuard(anchor, message, onConfirm)` is the project's
+//   guard-portal API (from base.html). We spy on it to assert message
+//   + callback wiring.
+//
+//   `window.Stripe` and `window.fetch` are stubbed out per-test so we
+//   never hit the real Stripe.js or backend.
+//
+// API under test:
+//   `initWalletShop()` — attaches click listeners to every `.tt-buy-btn`
+//                        inside `.wallet-shop`. Idempotent (calling twice
+//                        doesn't double-fire).
+// ─────────────────────────────────────────────────────────────────────────────
+
+function _seedShopFixture() {
+    const root = document.createElement('section');
+    root.className = 'wallet-shop';
+    root.id = 'id_wallet_shop';
+    // `_doBuy` reads these from `.wallet-shop` dataset; without them the
+    // buy flow short-circuits at the no-PM alert before reaching fetch.
+    root.dataset.defaultPaymentMethodId = 'pm_test_4242';
+    root.dataset.stripePublishableKey   = 'pk_test_fixture';
+    root.innerHTML = `
+        <div id="id_shop_tithe-1"
+             class="shop-tile"
+             data-shop-item-slug="tithe-1"
+             data-price-cents="100"
+             data-item-name="Tithe Token">
+            <i class="fa-solid fa-piggy-bank"></i>
+            <div class="tt">
+                <h4 class="tt-title">Tithe Token</h4>
+                <p class="tt-description">1 Tithe + 144 Writs</p>
+                <p class="tt-price">$1</p>
+                <div class="tt-microbutton-portal">
+                    <button class="btn btn-primary tt-buy-btn"
+                            data-shop-item-slug="tithe-1">BUY ITEM</button>
+                </div>
+            </div>
+        </div>
+        <div id="id_shop_band-1"
+             class="shop-tile"
+             data-shop-item-slug="band-1"
+             data-price-cents="2000"
+             data-item-name="Wristband">
+            <i class="fa-solid fa-ring"></i>
+            <div class="tt">
+                <h4 class="tt-title">Wristband</h4>
+                <p class="tt-price">$20</p>
+                <div class="tt-microbutton-portal">
+                    <button class="btn btn-primary tt-buy-btn btn-disabled"
+                            data-shop-item-slug="band-1">×</button>
+                    <p class="tt-already-owned"><em>Already owned</em></p>
+                </div>
+            </div>
+        </div>
+    `;
+    document.body.appendChild(root);
+    return root;
+}
+
+
+describe('WalletShop.initWalletShop', () => {
+    let fixture;
+    let _origFetch;
+    let _origStripe;
+    let _origShowGuard;
+
+    beforeEach(() => {
+        fixture = _seedShopFixture();
+        // Save+stub instead of spyOn — another spec elsewhere may already
+        // have a fetch spy active, and Jasmine refuses to double-spy on
+        // the same method ("fetch has already been spied upon"). Manual
+        // save+restore is double-spy-safe + scoped per spec block.
+        _origFetch = window.fetch;
+        window.fetch = jasmine.createSpy('fetch').and.returnValue(
+            Promise.resolve({ ok: true, json: () => Promise.resolve({}) })
+        );
+        _origStripe = window.Stripe;
+        window.Stripe = jasmine.createSpy('Stripe').and.returnValue({
+            confirmCardPayment: jasmine.createSpy('confirmCardPayment')
+                .and.returnValue(Promise.resolve({ paymentIntent: { status: 'succeeded' } })),
+        });
+        _origShowGuard = window.showGuard;
+        window.showGuard = jasmine.createSpy('showGuard');
+    });
+
+    afterEach(() => {
+        fixture.remove();
+        window.fetch = _origFetch;
+        window.Stripe = _origStripe;
+        window.showGuard = _origShowGuard;
+    });
+
+    // ── T1 ── click on enabled BUY opens guard portal w. price prompt ───────
+    it('T1: clicking BUY ITEM on tithe-1 opens guard with the item name + price', () => {
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard).toHaveBeenCalled();
+        const args = window.showGuard.calls.mostRecent().args;
+        expect(args[0]).toBe(btn);  // anchor
+        expect(args[1]).toContain('Tithe Token');
+        expect(args[1]).toContain('$1');
+        expect(typeof args[2]).toBe('function');  // onConfirm callback
+    });
+
+    // ── T2 ── click on disabled BUY does NOT open guard ─────────────────────
+    it('T2: clicking the .btn-disabled BUY (band-1, already-owned) is a no-op', () => {
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_band-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard).not.toHaveBeenCalled();
+    });
+
+    // ── T3 ── onConfirm callback POSTs to /shop/buy w. the right slug ───────
+    it('T3: invoking the onConfirm callback POSTs shop_item_slug to /shop/buy', () => {
+        // T3-local fetch override: never-resolving promise so the async
+        // chain pauses at the FIRST await + doesn't progress into the
+        // Stripe / confirm-endpoint dance that gets torn down by
+        // afterEach. Without this, the unawaited continuation fires
+        // `window.Stripe(pubKey)` after afterEach has restored
+        // window.Stripe = undefined → unhandled-promise-rejection error.
+        window.fetch = jasmine.createSpy('fetch').and.returnValue(new Promise(() => {}));
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        const onConfirm = window.showGuard.calls.mostRecent().args[2];
+        onConfirm();
+        expect(window.fetch).toHaveBeenCalled();
+        const [url, opts] = window.fetch.calls.mostRecent().args;
+        expect(url).toContain('/dashboard/wallet/shop/buy');
+        expect(opts.method).toBe('POST');
+        expect(opts.body).toContain('shop_item_slug=tithe-1');
+    });
+
+    // ── T4 ── initWalletShop is idempotent (calling twice doesn't double-wire) ─
+    it('T4: calling initWalletShop twice does not double-fire the guard portal', () => {
+        WalletShop.initWalletShop();
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard.calls.count()).toBe(1);
+    });
+
+    // ── T5 ── no `.wallet-shop` in DOM → init is a quiet no-op ──────────────
+    it('T5: initWalletShop with no `.wallet-shop` root does not throw', () => {
+        fixture.remove();
+        expect(() => WalletShop.initWalletShop()).not.toThrow();
+    });
+});
diff --git a/src/static_src/scss/_wallet-tokens.scss b/src/static_src/scss/_wallet-tokens.scss
index 085fce0..f679dfc 100644
--- a/src/static_src/scss/_wallet-tokens.scss
+++ b/src/static_src/scss/_wallet-tokens.scss
@@ -71,3 +71,79 @@
         transform: translateX(-50%);
     }
 }
+
+
+// ── Wallet Shop applet ───────────────────────────────────────────────────────
+// Mimics `.wallet-tokens` (horizontal row of tooltipped icons) but each tile
+// carries an admin-defined catalog item + an optional `.shop-badge` (eg "×5"
+// for the bundle) + a BUY-ITEM microbutton hosted in the tooltip portal.
+// JS wiring lives in `apps/dashboard/static/apps/dashboard/wallet-shop.js`.
+
+.wallet-shop {
+    display: flex;
+    flex-direction: column;
+    overflow: visible;
+
+    .shop-grid {
+        flex: 1;
+        display: flex;
+        flex-direction: row;
+        align-items: center;
+        justify-content: space-evenly;
+        gap: 1rem;
+        overflow: visible;
+    }
+}
+
+.shop-tile {
+    position: relative;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 1.5rem;
+    color: rgba(var(--terUser), 1);
+    cursor: help;
+}
+
+// ×5 badge — top-right corner, --quaUser glyph on --quiUser bg, 2rem circle.
+// Per-locked spec from [[project-wallet-shop-expansion]].
+.shop-badge {
+    position: absolute;
+    top: -0.5rem;
+    right: -0.75rem;
+    width: 2rem;
+    height: 2rem;
+    border-radius: 50%;
+    background: rgba(var(--quiUser), 1);
+    color: rgba(var(--quaUser), 1);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.85rem;
+    font-weight: 700;
+    pointer-events: none;
+}
+
+// Microtooltip — the buy-btn lives inside the main tooltip portal, styled
+// like Game Kit's `#id_mini_tooltip_portal` (Equipped/Unequipped/In-Use).
+// Hover persistence (cursor moves from tile → portal → microbutton without
+// dismissing the tooltip) is handled by `wallet-shop.js`.
+.tt-microbutton-portal {
+    margin-top: 0.5rem;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 0.25rem;
+
+    .tt-buy-btn {
+        font-size: 0.75rem;
+        padding: 0.25rem 0.75rem;
+    }
+
+    .tt-already-owned {
+        font-size: 0.7rem;
+        margin: 0;
+        color: rgba(var(--terUser), 0.85);
+    }
+}
+
diff --git a/src/static_src/tests/SpecRunner.html b/src/static_src/tests/SpecRunner.html
index 87819f0..41adf9f 100644
--- a/src/static_src/tests/SpecRunner.html
+++ b/src/static_src/tests/SpecRunner.html
@@ -29,10 +29,12 @@
     <script src="NoteSpec.js"></script>
     <script src="NotePageSpec.js"></script>
     <script src="RowLockSpec.js"></script>
+    <script src="WalletShopSpec.js"></script>
     <!-- src files -->
     <script src="/static/apps/applets/row-lock.js"></script>
     <script src="/static/apps/dashboard/dashboard.js"></script>
     <script src="/static/apps/dashboard/note.js"></script>
+    <script src="/static/apps/dashboard/wallet-shop.js"></script>
     <script src="/static/apps/billboard/note-page.js"></script>
     <script src="/static/apps/epic/stage-card.js"></script>
     <script src="/static/apps/epic/role-select.js"></script>
diff --git a/src/static_src/tests/WalletShopSpec.js b/src/static_src/tests/WalletShopSpec.js
new file mode 100644
index 0000000..9a2d818
--- /dev/null
+++ b/src/static_src/tests/WalletShopSpec.js
@@ -0,0 +1,161 @@
+// ── WalletShopSpec.js ────────────────────────────────────────────────────────
+//
+// Unit specs for wallet-shop.js — the BUY-ITEM click handler that drives
+// the shop applet's purchase flow (Chunk 4 of the wallet-expansion sprint).
+//
+// DOM contract assumed by `initWalletShop()`:
+//
+//   Each shop tile carries `data-shop-item-slug`, `data-price-cents`, and
+//   `data-item-name`. Inside the tile, a `.tt-buy-btn` element is the
+//   click target. Disabled tiles have `.btn-disabled` on the BUY btn +
+//   should NOT trigger the buy flow.
+//
+//   `window.showGuard(anchor, message, onConfirm)` is the project's
+//   guard-portal API (from base.html). We spy on it to assert message
+//   + callback wiring.
+//
+//   `window.Stripe` and `window.fetch` are stubbed out per-test so we
+//   never hit the real Stripe.js or backend.
+//
+// API under test:
+//   `initWalletShop()` — attaches click listeners to every `.tt-buy-btn`
+//                        inside `.wallet-shop`. Idempotent (calling twice
+//                        doesn't double-fire).
+// ─────────────────────────────────────────────────────────────────────────────
+
+function _seedShopFixture() {
+    const root = document.createElement('section');
+    root.className = 'wallet-shop';
+    root.id = 'id_wallet_shop';
+    // `_doBuy` reads these from `.wallet-shop` dataset; without them the
+    // buy flow short-circuits at the no-PM alert before reaching fetch.
+    root.dataset.defaultPaymentMethodId = 'pm_test_4242';
+    root.dataset.stripePublishableKey   = 'pk_test_fixture';
+    root.innerHTML = `
+        <div id="id_shop_tithe-1"
+             class="shop-tile"
+             data-shop-item-slug="tithe-1"
+             data-price-cents="100"
+             data-item-name="Tithe Token">
+            <i class="fa-solid fa-piggy-bank"></i>
+            <div class="tt">
+                <h4 class="tt-title">Tithe Token</h4>
+                <p class="tt-description">1 Tithe + 144 Writs</p>
+                <p class="tt-price">$1</p>
+                <div class="tt-microbutton-portal">
+                    <button class="btn btn-primary tt-buy-btn"
+                            data-shop-item-slug="tithe-1">BUY ITEM</button>
+                </div>
+            </div>
+        </div>
+        <div id="id_shop_band-1"
+             class="shop-tile"
+             data-shop-item-slug="band-1"
+             data-price-cents="2000"
+             data-item-name="Wristband">
+            <i class="fa-solid fa-ring"></i>
+            <div class="tt">
+                <h4 class="tt-title">Wristband</h4>
+                <p class="tt-price">$20</p>
+                <div class="tt-microbutton-portal">
+                    <button class="btn btn-primary tt-buy-btn btn-disabled"
+                            data-shop-item-slug="band-1">×</button>
+                    <p class="tt-already-owned"><em>Already owned</em></p>
+                </div>
+            </div>
+        </div>
+    `;
+    document.body.appendChild(root);
+    return root;
+}
+
+
+describe('WalletShop.initWalletShop', () => {
+    let fixture;
+    let _origFetch;
+    let _origStripe;
+    let _origShowGuard;
+
+    beforeEach(() => {
+        fixture = _seedShopFixture();
+        // Save+stub instead of spyOn — another spec elsewhere may already
+        // have a fetch spy active, and Jasmine refuses to double-spy on
+        // the same method ("fetch has already been spied upon"). Manual
+        // save+restore is double-spy-safe + scoped per spec block.
+        _origFetch = window.fetch;
+        window.fetch = jasmine.createSpy('fetch').and.returnValue(
+            Promise.resolve({ ok: true, json: () => Promise.resolve({}) })
+        );
+        _origStripe = window.Stripe;
+        window.Stripe = jasmine.createSpy('Stripe').and.returnValue({
+            confirmCardPayment: jasmine.createSpy('confirmCardPayment')
+                .and.returnValue(Promise.resolve({ paymentIntent: { status: 'succeeded' } })),
+        });
+        _origShowGuard = window.showGuard;
+        window.showGuard = jasmine.createSpy('showGuard');
+    });
+
+    afterEach(() => {
+        fixture.remove();
+        window.fetch = _origFetch;
+        window.Stripe = _origStripe;
+        window.showGuard = _origShowGuard;
+    });
+
+    // ── T1 ── click on enabled BUY opens guard portal w. price prompt ───────
+    it('T1: clicking BUY ITEM on tithe-1 opens guard with the item name + price', () => {
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard).toHaveBeenCalled();
+        const args = window.showGuard.calls.mostRecent().args;
+        expect(args[0]).toBe(btn);  // anchor
+        expect(args[1]).toContain('Tithe Token');
+        expect(args[1]).toContain('$1');
+        expect(typeof args[2]).toBe('function');  // onConfirm callback
+    });
+
+    // ── T2 ── click on disabled BUY does NOT open guard ─────────────────────
+    it('T2: clicking the .btn-disabled BUY (band-1, already-owned) is a no-op', () => {
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_band-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard).not.toHaveBeenCalled();
+    });
+
+    // ── T3 ── onConfirm callback POSTs to /shop/buy w. the right slug ───────
+    it('T3: invoking the onConfirm callback POSTs shop_item_slug to /shop/buy', () => {
+        // T3-local fetch override: never-resolving promise so the async
+        // chain pauses at the FIRST await + doesn't progress into the
+        // Stripe / confirm-endpoint dance that gets torn down by
+        // afterEach. Without this, the unawaited continuation fires
+        // `window.Stripe(pubKey)` after afterEach has restored
+        // window.Stripe = undefined → unhandled-promise-rejection error.
+        window.fetch = jasmine.createSpy('fetch').and.returnValue(new Promise(() => {}));
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        const onConfirm = window.showGuard.calls.mostRecent().args[2];
+        onConfirm();
+        expect(window.fetch).toHaveBeenCalled();
+        const [url, opts] = window.fetch.calls.mostRecent().args;
+        expect(url).toContain('/dashboard/wallet/shop/buy');
+        expect(opts.method).toBe('POST');
+        expect(opts.body).toContain('shop_item_slug=tithe-1');
+    });
+
+    // ── T4 ── initWalletShop is idempotent (calling twice doesn't double-wire) ─
+    it('T4: calling initWalletShop twice does not double-fire the guard portal', () => {
+        WalletShop.initWalletShop();
+        WalletShop.initWalletShop();
+        const btn = fixture.querySelector('#id_shop_tithe-1 .tt-buy-btn');
+        btn.click();
+        expect(window.showGuard.calls.count()).toBe(1);
+    });
+
+    // ── T5 ── no `.wallet-shop` in DOM → init is a quiet no-op ──────────────
+    it('T5: initWalletShop with no `.wallet-shop` root does not throw', () => {
+        fixture.remove();
+        expect(() => WalletShop.initWalletShop()).not.toThrow();
+    });
+});
diff --git a/src/templates/apps/dashboard/wallet.html b/src/templates/apps/dashboard/wallet.html
index 48efbc7..a0f4c82 100644
--- a/src/templates/apps/dashboard/wallet.html
+++ b/src/templates/apps/dashboard/wallet.html
@@ -12,4 +12,5 @@
     <div id="id_tooltip_portal" class="token-tooltip"></div>
     <script src="https://js.stripe.com/v3/"></script>
     <script src="{% static "apps/dashboard/wallet.js" %}"></script>
+    <script src="{% static "apps/dashboard/wallet-shop.js" %}"></script>
 {% endblock content %}
diff --git a/src/templates/apps/wallet/_partials/_applet-wallet-shop.html b/src/templates/apps/wallet/_partials/_applet-wallet-shop.html
index ba3b631..507bc62 100644
--- a/src/templates/apps/wallet/_partials/_applet-wallet-shop.html
+++ b/src/templates/apps/wallet/_partials/_applet-wallet-shop.html
@@ -2,13 +2,46 @@
     id="id_wallet_shop"
     class="wallet-shop"
     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
+    data-default-payment-method-id="{{ default_payment_method_id }}"
+    data-stripe-publishable-key="{{ stripe_publishable_key }}"
 >
-    {% comment %}
-    Stub. Chunk 2 of the wallet-expansion sprint ships the row + model
-    catalog; Chunk 4 fills in shop-tile rendering + BUY-ITEM microtooltip
-    + Stripe.js wiring. Keep the <section> element + id_wallet_shop hook
-    so any test that just checks for shop visibility passes from Chunk 2
-    onward (TDD's "ship the skeleton, fill the body next" pattern).
-    {% endcomment %}
     <h2>Shop</h2>
+    <div class="shop-grid">
+    {% for item in shop_items %}
+        <div
+            id="id_shop_{{ item.slug }}"
+            class="shop-tile"
+            data-shop-item-slug="{{ item.slug }}"
+            data-price-cents="{{ item.price_cents }}"
+            data-item-name="{{ item.name }}"
+        >
+            <i class="fa-solid {{ item.icon }}"></i>
+            {% if item.badge_text %}
+                <span class="shop-badge">{{ item.badge_text }}</span>
+            {% endif %}
+            <div class="tt">
+                <h4 class="tt-title">{{ item.name }}</h4>
+                <p class="tt-description">{{ item.description }}</p>
+                <p class="tt-price">{{ item.price_display }}</p>
+                <div class="tt-microbutton-portal">
+                    {% if item.available %}
+                        <button
+                            type="button"
+                            class="btn btn-primary tt-buy-btn"
+                            data-shop-item-slug="{{ item.slug }}"
+                        >BUY ITEM</button>
+                    {% else %}
+                        <button
+                            type="button"
+                            class="btn btn-primary tt-buy-btn btn-disabled"
+                            data-shop-item-slug="{{ item.slug }}"
+                            aria-disabled="true"
+                        >&times;</button>
+                        <p class="tt-already-owned"><em>Already owned</em></p>
+                    {% endif %}
+                </div>
+            </div>
+        </div>
+    {% endfor %}
+    </div>
 </section>