my teacher gave us a more or less open project... we have to design and build something that will move itself for at least 5 seconds. can be on land, water, air whatever, and of course the more creative it is the more marks. i was origionally going to make a gas powered go kart, radio controlled with steering, throttle and maybe even gears(was gonna use a chainsaw engine, bicycle gears and hadn't figured out the steering) but i don't know how to weld(thus no frame) and have none of the parts i need available to me. so i'm looking for other ideas, any input would be appreciated 
