If your cats are a part of your family, then it's time to resign yourself to making your cats' furniture a part of your home decor. While the Climbing Cat Tower ($350) by Bowsers is a bit pricey, it's also aesthetically pleasing. The wooden cubes stack to create a modern piece, perfect for kitty play. If a tower five cubes tall is just too much, you can just put the unneeded extras somewhere else. The cat tower possibilities are pretty open-ended here.