Meet the WheelSurf, the bastard stepchild of the nerdy unicycle. Race at 50 km/hr with its 56cc, 2-litre gasoline engine. You'll have to lean into your turns to steer, raising the odds that you'll flip over like Tara Reid's skirt at a dance club. Order it now - there's a three-month wait time. $5,627 from www.wheelsurf.nl .