i remember boys life magazine had all kinds of plans for these contraptions in the back of the magazine. the one i always thought would be the coolest was the "flying sauceer" made from a vacume motor. im serious, i had dreams of flying this thing to school, and being soooooo cool......thing is, at 11 yrs old, i never considered the mile long extension cord i would have needed, let alone the cord laying all over the neighbors yards, and down the streets all day long while i was in school....... but man, that was the kind of stuff that got a kids imagination going!!!