Hiding That Cat Box

I'm not sure what made me start thinking about my cat box, but I started to think about the possibilities of camouflaging the cat box to help with loose kitty liter. My husband has already made a very nice kitty door in the basement bathroom, to keep the dogs out. But now I'd like to work on containing the kitty box itself. I guess I'm not the first, because after doing a search, several ideas popped up. 

This one is my favorite, but a bit to big for my space. 

Here are some additional pictures and ideas from IKEA Hackers.