Due to the recent move, we had a lot of cardboard boxes lying around, so Dan decided on a project for himself — to create a play castle for our chinchillas Diesel and Piper. I was at first skeptical about the idea, but it turned out surprisingly sturdy with three floors accompanied by internal staircases leading up to each. The chinchillas seem to be having a lot of fun with it, too! We found a way to coax them to them to the top by hanging one of their favorite treats on the pinnacle.