My kids talk about the Ultimate Ferret Playground we put together for under $50.00. Ferret's make amazing pets and my kids with Autism love them tremendously. We went to Home Depot and picked up 50 feet of corrugated pipe for about $20.00. We spent another $20.00 on various connectors so we could connect sections of various pipe together to form a ferret freeway. The kids change the setup around every day and make it a new experience for our ferrets. https://youtu.be/r-sf1XKlOJE