Oh, yeah! This is one cool idea. Get a small, yet powerful lawnmower-like engine, build yourself a chariot out of plywood, and you've got yourself a way to kill time and unsuspecting bystanders, especially if you've got spikes on your wheels like these guys. Cool!

I don't know if it's fake or not, but it looks to me like somebody mounted an airplane engine on a lawnmower. The results: A flying lawnmower which can do loops

Here's a funny video (probably a commercial) where a guy gets pwned by his lawnmower. Very funny! Enjoy!