diff --git a/packages/frontend/assets/room/objects/letter-case/letter-case.blend b/packages/frontend/assets/room/objects/letter-case/letter-case.blend
index 46af3da96c..96f46b0dc6 100644
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diff --git a/packages/frontend/assets/room/objects/letter-case/letter-case.glb b/packages/frontend/assets/room/objects/letter-case/letter-case.glb
index 5ef61b143d..06aee769d9 100644
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diff --git a/packages/frontend/assets/room/objects/rolled-up-poster/rolled-up-poster.blend b/packages/frontend/assets/room/objects/rolled-up-poster/rolled-up-poster.blend
new file mode 100644
index 0000000000..dfbd654a84
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diff --git a/packages/frontend/assets/room/objects/rolled-up-poster/rolled-up-poster.glb b/packages/frontend/assets/room/objects/rolled-up-poster/rolled-up-poster.glb
new file mode 100644
index 0000000000..236dd6b02c
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diff --git a/packages/frontend/assets/room/objects/tabletop-digital-clock/tabletop-digital-clock.blend b/packages/frontend/assets/room/objects/tabletop-digital-clock/tabletop-digital-clock.blend
index 4a9c65f58e..a195c813eb 100644
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diff --git a/packages/frontend/assets/room/objects/tabletop-digital-clock/tabletop-digital-clock.glb b/packages/frontend/assets/room/objects/tabletop-digital-clock/tabletop-digital-clock.glb
index 8c5502e67e..dc3363cb07 100644
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diff --git a/packages/frontend/src/utility/room/object-defs.ts b/packages/frontend/src/utility/room/object-defs.ts
index e481233994..01693026a8 100644
--- a/packages/frontend/src/utility/room/object-defs.ts
+++ b/packages/frontend/src/utility/room/object-defs.ts
@@ -31,6 +31,7 @@ import { pachira } from './objects/pachira.js';
 import { plant } from './objects/plant.js';
 import { plant2 } from './objects/plant2.js';
 import { powerStrip } from './objects/powerStrip.js';
+import { rolledUpPoster } from './objects/rolledUpPoster.js';
 import { roundRug } from './objects/roundRug.js';
 import { snakeplant } from './objects/snakeplant.js';
 import { steelRack } from './objects/steelRack.js';
@@ -69,6 +70,7 @@ export const OBJECT_DEFS = [
 	plant,
 	plant2,
 	powerStrip,
+	rolledUpPoster,
 	roundRug,
 	snakeplant,
 	steelRack,
diff --git a/packages/frontend/src/utility/room/objects/rolledUpPoster.ts b/packages/frontend/src/utility/room/objects/rolledUpPoster.ts
new file mode 100644
index 0000000000..7132188e95
--- /dev/null
+++ b/packages/frontend/src/utility/room/objects/rolledUpPoster.ts
@@ -0,0 +1,17 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { defineObject } from '../engine.js';
+
+export const rolledUpPoster = defineObject({
+	id: 'rolledUpPoster',
+	defaultOptions: {},
+	placement: 'top',
+	createInstance: () => {
+		return {
+			interactions: {},
+		};
+	},
+});