Bwahahaha, yes just some tiny black powder 'charges' that I had laying around the car...
Not enough force to damage anything, although we discovered the smoke will linger inside a building for a minute or two and looks really cool! Once it's in the air it disperses in about 30 seconds. In the open like this black powder goes "Phfoooof!" and creates very little heat or force, ask Ed..
I'm going to work on a system that improves safety & management of this sort of pyro.. we were basically lighting the paper tubes with a cigarette lighter & I think we can do better
Tiger I - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant