I just saw these advertised on craigslist. It looks like they are even a Minneapolis MN based company. I've never seen them before and thought they where quit amuzeing. I really wouldn't have a use for one, but I could see how some would have fun on one.
The website says they are build in an Amish welding shop in Indiana... their Amish must be different than those around here. The local ones don't have electricity.