yeah, that kid who built the hovercraft is the one who has
www.xinventions.com, and there's a bunch of pics on the site. i think we want to build something like that, only a little bigger and more powerful. we're not exactly sure though.
also, is it possible to power a shop vac with say, a car battery and a volt converter? i have a really cool idea, but it wouldn't work with extension cords.