Need an SFX/materials expert to build a realistic fake animal skin prototype

Hey! I’m working on a small hardware project and need help building a single physical prototype. I’m designing a sensory patch that needs to feel like petting a real dog—specifically getting that proper squish, weight, and the way skin glides over muscle underneath, rather than just a standard stuffed animal feel. I'm looking for someone experienced with silicones and molding to build a single 8x8 inch test piece. Ideally, it needs three simple layers: A firm base for the "muscle" A squishy, sliding layer for the "fat" A soft, high-quality stretch faux fur bonded cleanly on top without a stiff glue backing. I'll cover all materials, shipping, and your time. If you have experience with silicone casting, SFX props, or medical/tactile models, please send over a few examples of your past work!