Ben Gulak and Jason Morrow from Chisholm Collegiate in Oakville, Ontario, modified a Yamaha R6 to create the Tango Electric Unicycle. The Tango works like the Segway. You just lean forward to make it go and it has a top speed of 40mph (compared to the Segway's top speed of 12.5mph).
While they didn't win a prize for their invention they did get some much deserved attention.
I would love to zip by some rich geek on Segway while riding one of these.