A feeble attempt to control them. It probably won't work tbh.
A high quality harness with grabbable leash for the Freakhound by Ghost Cabbit
Made for VRChat, comes as a Unitypackage containing prefabs, FBX, textures and materials.

Here's how you attach the main harness easily in Unity:
To attach the leash, parent the included prefab under the spine bone.
You can use this asset on public avatars. For commissions, both parties must own the asset.