In my avatar there's Perry, right? Well that red decoration I handmade for Perry. It's from a plastic cup and I cut the top off. Then, I made a hole on the bottom and I cut the side to make a doorway. The cup is supposed to be turned upside-down so Perry can get in the side doorway and if she needs air she can come out the top doorway. Perry uses the side door for going in and the top door for coming out. And I hadn't told you inside is a little piece of plastic sticking out it's for Perry to sleep on but she sleeps under it.