I recently bought a cardboard playcastle from a website called Bunny Luv. It was very easy to assemble and the directions were clear. My little Lily absoluely adores it! It took her a while to learn how to navagate up and down the stairs. But now she races up and down the three story cardboard castle. She even divebombed out on of the windows (no, she wasn't hurt) once. Now when I take it out of her playpen she gives me a dirty look and scampers off into her cage to pout. It's the cutest thing ever. I highly recommend buying toys/chews from http://www.bunnyluv.com if you have rabbits, rats, or chinchillas. Their organic apple wood and willow chew toys are a huge hit at my house. lily demolishes about 1 willow cube a month.

On to the photos!