I grew up in Gettysburg (civil war town in the US). Two of my relatives when they were younger would make gunpowder, and buy rocket fuse and take both to the national park at night and load the cannons with homemade black powder and set the cannons off (by inserting the rocket fuse through the muzzle of the gun - I'm sure they were set off by percussion or something at the back, and that sealed shut, but the fronts were open).
That would allow them to get in a car, head across the park somewhere else and wait for the boom. Probably would be deemed terrorists now (by the time I was in school, the park commission had plugged all of the old cannons with wood so that you couldn't put anything in them. Wasn't usually gunpowder, rather fast food wrappers stuffed in as tight as people could get them in).
That would allow them to get in a car, head across the park somewhere else and wait for the boom. Probably would be deemed terrorists now (by the time I was in school, the park commission had plugged all of the old cannons with wood so that you couldn't put anything in them. Wasn't usually gunpowder, rather fast food wrappers stuffed in as tight as people could get them in).