I know its black powder but what chemical makes the crackle?
Crackling fireworks typically contain magnesium-aluminum alloy powder plus oxides of either lead or bismuthThese mixtures are made up into small round granules, which are then coated with (or charged into a tube with) a black powder type mixtureThe granules crackle when ignited and expelled as the BP burns.
Drilling holes through the drive will do the trickOr just open the drive and smash the plattersThey are like glass, breaks easily.
