My mother has this skeleton (with a bird and a nest on it's head) in her art studio and I kidnapped him, took him out a while back and took pictures of him around town (view the set here). For mothers day I printed one of the photos out of him standing at a light pole and ran it through posterazor (it is GPL and Free) which is much like Rasterbator. I ended up with this HUGE poster. It turned out simply awesome. *Update*: Link to the Original