Sparklerbomb

Here's the sparklerbomb created by Kathryn's (Rachel's best bud) brother and his friends. A sparklerbomb is where you duct tape hundreds of harmless sparklers together and light just the one. Then you step back a fair distance.

Please note that despite how it looks, Kathryn actually did not get touched by the explosion.

Andy watched the whole thing. And won't come near a sparkler anymore. That might be a good thing - a fear of fire.