We've wanted to get our cats a cat tree for so long, but I've always thought they were hideous and I hate those carpet covered cat gyms. I was inspired by the really expensive, modern looking cat trees I've seen around the internet to create my own. I call it, "Basil and Cooper's Leisure Suite"
I bought a simple a-frame, ladder style bookcase and drilled some holes in the 3rd shelf to stagger in a bit and make it a little more fun for the kitties to climb on.
I turned the bottom shelf into a cat condo with removable screens, there's a faux-fur covered box inside for optimal napping. I wrapped one of the legs with rope for a scratching post. I also made them some hanging cat-nip filled toys.
The fluffy bed on the second story loft is covered in faux-fur and is velcrod down so the cats don't slide around. The third shelf is covered in bits of carpet for more scratching! I covered the top story penthouse with faux fur.
Here are my kitties enjoying the view from the penthouse.