That was the situation we found ourselves in as firecrackers, cherry bombs and M-80s were being exploded, with some planned fireworks for the evening.
Fortunately, we ran into a visitor our age who was entertaining himself with booming success.
All he had was an old metal Drano can with the metal lid that popped on and off.
Oh, and he had gone to a drugstore and bought calcium carbide which was plentiful and cheap.
This container is similar to the old Drano cans. Just punch a few holes in the bottom with small nails and your cannon is ready.
Here, you see a now hard-to-find bottle with the calcium carbide crystals.