diff --git a/packages/frontend/assets/room/objects/wall-shelf/textures/wood.png b/packages/frontend/assets/room/objects/wall-shelf/textures/wood.png
new file mode 100644
index 0000000000..3d0c47a25a
Binary files /dev/null and b/packages/frontend/assets/room/objects/wall-shelf/textures/wood.png differ
diff --git a/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.blend b/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.blend
new file mode 100644
index 0000000000..42392dbdc0
Binary files /dev/null and b/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.blend differ
diff --git a/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.glb b/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.glb
new file mode 100644
index 0000000000..04228ca431
Binary files /dev/null and b/packages/frontend/assets/room/objects/wall-shelf/wall-shelf.glb differ
diff --git a/packages/frontend/src/pages/room.vue b/packages/frontend/src/pages/room.vue
index f679fbef08..33a0ba5851 100644
--- a/packages/frontend/src/pages/room.vue
+++ b/packages/frontend/src/pages/room.vue
@@ -33,6 +33,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 					<div v-if="s.type === 'color'">
 						<MkInput :modelValue="getHex(engine.selected.value.objectState.options[k])" type="color" @update:modelValue="v => { const c = getRgb(v); if (c != null) engine.updateObjectOption(engine.selected.value.objectId, k, c); }"></MkInput>
 					</div>
+					<div v-else-if="s.type === 'enum'">
+						<MkSelect :items="s.enum.map(e => ({ label: e, value: e }))" :modelValue="engine.selected.value.objectState.options[k]" @update:modelValue="v => engine.updateObjectOption(engine.selected.value.objectId, k, v)"></MkSelect>
+					</div>
 				</div>
 			</div>
 		</template>
@@ -602,5 +605,7 @@ definePage(() => ({
 	right: 16px;
 	z-index: 1;
 	padding: 16px;
+	box-sizing: border-box;
+	width: 300px;
 }
 </style>
diff --git a/packages/frontend/src/utility/room/engine.ts b/packages/frontend/src/utility/room/engine.ts
index b4b0ba07fc..2272a60bd5 100644
--- a/packages/frontend/src/utility/room/engine.ts
+++ b/packages/frontend/src/utility/room/engine.ts
@@ -25,7 +25,7 @@ import { registerBuiltInLoaders } from '@babylonjs/loaders/dynamic';
 import { BoundingBoxRenderer } from '@babylonjs/core/Rendering/boundingBoxRenderer';
 import { GridMaterial } from '@babylonjs/materials';
 import { ShowInspector } from '@babylonjs/inspector';
-import { reactive, ref, shallowRef, watch } from 'vue';
+import { reactive, ref, shallowRef, triggerRef, watch } from 'vue';
 import { genId } from '../id.js';
 import { getObjectDef } from './object-defs.js';
 import { HorizontalCameraKeyboardMoveInput } from './utility.js';
@@ -78,16 +78,16 @@ type ColorOptionSchema = {
 	label: string;
 };
 
-type SelectOptionSchema = {
-	type: 'select';
+type EnumOptionSchema = {
+	type: 'enum';
 	label: string;
 	enum: string[];
 };
 
-type OptionsSchema = Record<string, NumberOptionSchema | ColorOptionSchema | SelectOptionSchema>;
+type OptionsSchema = Record<string, NumberOptionSchema | ColorOptionSchema | EnumOptionSchema>;
 
 type GetOptionsSchemaValues<T extends OptionsSchema> = {
-	[K in keyof T]: T[K] extends NumberOptionSchema ? number : T[K] extends ColorOptionSchema ? [number, number, number] : T[K] extends SelectOptionSchema ? T[K]['enum'][number] : never;
+	[K in keyof T]: T[K] extends NumberOptionSchema ? number : T[K] extends ColorOptionSchema ? [number, number, number] : T[K] extends EnumOptionSchema ? T[K]['enum'][number] : never;
 };
 
 type ObjectDef<OpSc extends OptionsSchema = OptionsSchema> = {
@@ -1213,6 +1213,10 @@ export class RoomEngine {
 		const obji = this.objectInstances.get(objectId);
 		if (obji == null) return;
 		obji.onOptionsUpdated?.([key, value]);
+
+		if (this.selected.value?.objectId === objectId) {
+			triggerRef(this.selected);
+		}
 	}
 
 	public resize() {
diff --git a/packages/frontend/src/utility/room/object-defs.ts b/packages/frontend/src/utility/room/object-defs.ts
index 01693026a8..1c50f321a6 100644
--- a/packages/frontend/src/utility/room/object-defs.ts
+++ b/packages/frontend/src/utility/room/object-defs.ts
@@ -39,6 +39,7 @@ import { tabletopCalendar } from './objects/tabletopCalendar.js';
 import { tabletopDigitalClock } from './objects/tabletopDigitalClock.js';
 import { tv } from './objects/tv.js';
 import { wallClock } from './objects/wallClock.js';
+import { wallShelf } from './objects/wallShelf.js';
 import { woodSoundAbsorbingPanel } from './objects/woodSoundAbsorbingPanel.js';
 
 export const OBJECT_DEFS = [
@@ -78,6 +79,7 @@ export const OBJECT_DEFS = [
 	tabletopDigitalClock,
 	tv,
 	wallClock,
+	wallShelf,
 	woodSoundAbsorbingPanel,
 ];
 
diff --git a/packages/frontend/src/utility/room/objects/tabletopDigitalClock.ts b/packages/frontend/src/utility/room/objects/tabletopDigitalClock.ts
index 74ec2f9772..d75a920393 100644
--- a/packages/frontend/src/utility/room/objects/tabletopDigitalClock.ts
+++ b/packages/frontend/src/utility/room/objects/tabletopDigitalClock.ts
@@ -13,7 +13,7 @@ export const tabletopDigitalClock = defineObject({
 	options: {
 		schema: {
 			bodyStyle: {
-				type: 'select',
+				type: 'enum',
 				label: 'Body Style',
 				enum: ['color', 'wood'],
 			},
@@ -37,7 +37,7 @@ export const tabletopDigitalClock = defineObject({
 				const [r, g, b] = options.bodyColor;
 				bodyMaterial.albedoColor = new BABYLON.Color3(r, g, b);
 			} else {
-				bodyMaterial.albedoTexture = room.scene.getTextureByName('tabletop_digital_clock_wood');
+
 			}
 		};
 
diff --git a/packages/frontend/src/utility/room/objects/wallShelf.ts b/packages/frontend/src/utility/room/objects/wallShelf.ts
new file mode 100644
index 0000000000..d72914708f
--- /dev/null
+++ b/packages/frontend/src/utility/room/objects/wallShelf.ts
@@ -0,0 +1,76 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import * as BABYLON from '@babylonjs/core';
+import { defineObject } from '../engine.js';
+
+export const wallShelf = defineObject({
+	id: 'wallShelf',
+	name: 'Wall Shelf',
+	options: {
+		schema: {
+			style: {
+				type: 'enum',
+				label: 'Style',
+				enum: ['A', 'B'],
+			},
+			boardStyle: {
+				type: 'enum',
+				label: 'Board style',
+				enum: ['color', 'wood'],
+			},
+			boardColor: {
+				type: 'color',
+				label: 'Board color',
+			},
+		},
+		default: {
+			style: 'A',
+			boardStyle: 'wood',
+			boardColor: [1, 1, 1],
+		},
+	},
+	placement: 'side',
+	createInstance: ({ room, options, root }) => {
+		const applyStyle = () => {
+			const aMeshes = root.getChildMeshes().filter(m => m.name.includes('__X_VARIATION_A__'));
+			const bMeshes = root.getChildMeshes().filter(m => m.name.includes('__X_VARIATION_B__'));
+
+			for (const m of aMeshes) {
+				(m as BABYLON.Mesh).setEnabled(options.style === 'A');
+			}
+			for (const m of bMeshes) {
+				(m as BABYLON.Mesh).setEnabled(options.style === 'B');
+			}
+		};
+
+		applyStyle();
+
+		const bodyMesh = root.getChildMeshes().find(m => m.name.includes('__X_BOARD__')) as BABYLON.Mesh;
+		const bodyMaterial = bodyMesh.material as BABYLON.PBRMaterial;
+		const bodyTexture = bodyMaterial.albedoTexture as BABYLON.Texture;
+
+		const applyBoardColor = () => {
+			const [r, g, b] = options.boardColor;
+			bodyMaterial.albedoColor = new BABYLON.Color3(r, g, b);
+
+			if (options.boardStyle === 'color') {
+				bodyMaterial.albedoTexture = null;
+			} else {
+				bodyMaterial.albedoTexture = bodyTexture;
+			}
+		};
+
+		applyBoardColor();
+
+		return {
+			onOptionsUpdated: ([k, v]) => {
+				applyStyle();
+				applyBoardColor();
+			},
+			interactions: {},
+		};
+	},
+});