Fun thing to do.
Make a bunch of rockets (the Fatcan 9000) on the ground, then release them all, so they're untethered. Then, attach another rocket to their side, making a 'T' shape. Make sure they're all lying on their sides (not standing up). Turn on your rockets and play 'Dodge the spinning deathrockets'. If you have two people you can sling em at each other and try to kill each other.
For a bonus game, have everyone stand near them, then, while they're powered up, release them. Whoever ISN'T turned to paste wins.