diff --git a/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.blend b/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.blend
index 54976724b0..6d10f6b222 100644
Binary files a/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.blend and b/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.blend differ
diff --git a/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.glb b/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.glb
index d7719e0d41..0b3678f6b4 100644
Binary files a/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.glb and b/packages/frontend/assets/room/objects/monitor-speaker/monitor-speaker.glb differ
diff --git a/packages/frontend/src/world/room/objects/letterCase.ts b/packages/frontend/src/world/room/objects/letterCase.ts
index 90f60444b1..f05e81b526 100644
--- a/packages/frontend/src/world/room/objects/letterCase.ts
+++ b/packages/frontend/src/world/room/objects/letterCase.ts
@@ -13,6 +13,7 @@ export const letterCase = defineObject({
 		default: {},
 	},
 	placement: 'top',
+	hasCollisions: false,
 	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
diff --git a/packages/frontend/src/world/room/objects/mixer.ts b/packages/frontend/src/world/room/objects/mixer.ts
index 5ef459b3ce..7e9ec1e8c1 100644
--- a/packages/frontend/src/world/room/objects/mixer.ts
+++ b/packages/frontend/src/world/room/objects/mixer.ts
@@ -15,6 +15,7 @@ export const mixer = defineObject({
 	placement: 'top',
 	hasCollisions: false,
 	hasTexture: true,
+	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
 			interactions: {},
diff --git a/packages/frontend/src/world/room/objects/monitorSpeaker.ts b/packages/frontend/src/world/room/objects/monitorSpeaker.ts
index 8d718a91dd..f0be1a97bd 100644
--- a/packages/frontend/src/world/room/objects/monitorSpeaker.ts
+++ b/packages/frontend/src/world/room/objects/monitorSpeaker.ts
@@ -22,9 +22,9 @@ export const monitorSpeaker = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: ({ options, model }) => {
-		const bodyMesh = model.findMesh('__X_BODY__');
-		const bodyMaterial = bodyMesh.material as BABYLON.PBRMaterial;
+		const bodyMaterial = model.findMaterial('__X_BODY__');
 
 		const applyColor = () => {
 			const [r, g, b] = options.color;
diff --git a/packages/frontend/src/world/room/objects/mug.ts b/packages/frontend/src/world/room/objects/mug.ts
index 2f4d090d66..f7cfbe609c 100644
--- a/packages/frontend/src/world/room/objects/mug.ts
+++ b/packages/frontend/src/world/room/objects/mug.ts
@@ -17,6 +17,7 @@ export const mug = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: ({ scene, root }) => {
 		let yugeDispose: (() => void) | null = null;
 
diff --git a/packages/frontend/src/world/room/objects/newtonsCradle.ts b/packages/frontend/src/world/room/objects/newtonsCradle.ts
index ece48fca14..98f2975154 100644
--- a/packages/frontend/src/world/room/objects/newtonsCradle.ts
+++ b/packages/frontend/src/world/room/objects/newtonsCradle.ts
@@ -22,6 +22,7 @@ export const newtonsCradle = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: ({ options, model }) => {
 		const frameMaterial = model.findMaterial('__X_FRAME__');
 
diff --git a/packages/frontend/src/world/room/objects/plant2.ts b/packages/frontend/src/world/room/objects/plant2.ts
index c29f48f417..d08b0297e6 100644
--- a/packages/frontend/src/world/room/objects/plant2.ts
+++ b/packages/frontend/src/world/room/objects/plant2.ts
@@ -14,6 +14,7 @@ export const plant2 = defineObject({
 	},
 	placement: 'top',
 	hasTexture: true,
+	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
 			interactions: {},
diff --git a/packages/frontend/src/world/room/objects/powerStrip.ts b/packages/frontend/src/world/room/objects/powerStrip.ts
index 133d8c9af1..1c8dfd8ac2 100644
--- a/packages/frontend/src/world/room/objects/powerStrip.ts
+++ b/packages/frontend/src/world/room/objects/powerStrip.ts
@@ -14,6 +14,7 @@ export const powerStrip = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
 			interactions: {},
diff --git a/packages/frontend/src/world/room/objects/siphon.ts b/packages/frontend/src/world/room/objects/siphon.ts
index f204a90088..804fcba56b 100644
--- a/packages/frontend/src/world/room/objects/siphon.ts
+++ b/packages/frontend/src/world/room/objects/siphon.ts
@@ -14,6 +14,7 @@ export const siphon = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
 			interactions: {},
diff --git a/packages/frontend/src/world/room/objects/sprayer.ts b/packages/frontend/src/world/room/objects/sprayer.ts
index 11c77a003d..8e2bb6aafe 100644
--- a/packages/frontend/src/world/room/objects/sprayer.ts
+++ b/packages/frontend/src/world/room/objects/sprayer.ts
@@ -14,6 +14,7 @@ export const sprayer = defineObject({
 	},
 	placement: 'top',
 	hasCollisions: false,
+	canPreMeshesMerging: true,
 	createInstance: () => {
 		return {
 			interactions: {},