http://www.boredpanda.com/cat-transit-system/ People have done some similar but less robust things for ferrets. Given infinite money -- which will never happen in our case and with our favored charities most easy come money would leave here anyway -- it would be great to have custom furniture with accessible, built in ferret tunnels that are not ones they create by digging, and to have an accessible pipe system that is this pretty in a room dedicated to the ferrets, wouldn't it? [Posted in FML 7923]