Adjustable Slow-Feeding Pet Bowl Design

I need a skilled designer to create a manufacturable 3D CAD model for an innovative slow-feeding pet bowl intended for medium-sized dogs. The design should feature a rotating inner maze insert to vary the feeding pattern. Both the bowl and the insert should be made of plastic and must be dishwasher-safe. The rotating mechanism should be simple and mechanical to ensure durability and ease of use. Ideal skills for this project include proficiency in 3D CAD modeling, experience with designing pet products, and knowledge of manufacturable plastic designs.