Eolipile
Kimric Smythe is one of the crazy mad scientists who stuff The Shipyard where I work. He whipped this little duesy up in a week or two to have something to toodle around Burning Man with.
The rear wheel is off of an old Model T.
You can see much larger pictures at his photostream. Also, check out the steam jitney and victorian mansion on wheels.
Whatta guy!