The local radio DJ's are having contest...one guy has to build something that can take him off of the ground for 5 seconds. If that guy succeeds, he gets a grand from the other guy...if he can't, they blow up his car. However, if he gets off the ground for atleast 2 seconds but less than 5 seconds, neither lose anything.

Anyway, what possible things could this guy build to get him off the ground? No part of this "thing" can touch the ground.

Any ideas?