This hamster home, hacked from an IKEA Expedit bookcase, is amazing. Martina created the hamster mansion complete with loads of space for running, and even a compartment filled with bedding in which her pet can burrow (all while she watches through a glass window). I better make sure our pet rat, Reese, doesn’t see this or he’s going to be awfully jealous …. [via Apartment Therapy and IKEA Hacker]