good to see a fellow pyro and duct tape enthusiast! the duct tape is acting in the same way that french bangers do, a small amount of powder contained in a small space forces it to explode quicker and more violently in a given direction, hence the bigger explosion, i do love my flash powder, always makes a nice mushroom cloud of smoke
i just get it from fireworks myself, 9 times out of 10 if you find pure white powder in them, its flash powder, light a small amount to check, if its bright, leaves lots of white residue and makes that mushroom cloud, however small the pile is, its probably flash powder 
ill send you something interesting binary
when i find it that is lol


ill send you something interesting binary

when i find it that is lol