A midget camera that is. Somebody mounted a Go-Pro HD miniature camera on the back of their dog. It leads to a pretty entertaining video of a dog wandering around its yard and house. I quite liked the dog's head movements in it.
Go-Pro cameras are usually used by athletes as helmet cams, but they've been put to all sorts of other uses -- mounted on radio controlled planes and so forth. You can find a lot of videos they shot on YouTube, including the guy who managed to accidentally fall off a cliff (embedding disabled, you'll have to follow the link to see that video).