One of Carrie's co-workers gave us this thing called a "Sport Pet" and Lily rules it. We got two more ... they're sold in two-packs at Target. She refuses to let the other cats near them.
This pic was taken just after she started recovering from her recent surgery:
Aww poor baby! Yes, those cube things are fun, but Milo feels the need to alter them too! He just can't leave anything alone. He got himself all twisted up in it the first day. Now he walks waaaaay around it. lol