Originally Posted by RichP
My friends and I used to disassemble Estes model rocket motors (basically black powder) crush the propellant with hammers (STUPID!) and repack them.
Heres a good one that works. Take ALOT of sparklers, bundle them very tightly with tape, with one sticking out like a wick. Light the one, and run like hell, it will explode like an M80 if you wrapped them tight enough!
EDIT: Here is a link:
Yeah I might have done that before but not with a 4 y/o. She would probably think that would be cool. Costco also had an 18 ft long firecracker. My neighbor lit a few of them up during New Years. He climbed on a ladder and hung them from the street light.