This is a video detailing the build of a hobbit-hole litter box and Barad-dûr/Eye of Sauron cat-scratching tower for crazed Tolkien fan Misha and his cats Frodo and Sam (yes, seriously -- he even puts Frodo in a bag and calls him Frodo Baggins). Man, my cats would DESTROY that Hobbit-hole. I give them a day before they tore all the plants out of the ground and covered the stone walkway with smeared shit. That is why they can't have nice things. You ever seen a cat shit three-feet high on a wall before? You should come over sometime.
Keep going for the video, but skip to 0:55 and 7:05 to see just how super-fanny Misha is (SPOILER: very).
Thanks to becca, who referenced wanting an Ewok village for her sugar glider. That would be cool.