Mental Floss has a great post featuring a variety of weird cameras, but my favorite has to be this weird gun camera. The trigger works just like one on a regular gun, which gives a whole new meaning to shooting wildlife.
Looks freaking cool. Wouldn't want to carry my rig around on that around in MA though. The cops freaked out with the whole umbrella thing not to long ago, a gun stock like that would definitely get some good samaritans calling it in.