Eventually, what goes up must come down. The firework shell that brought lights into the sky falls to the ground as burnt cardboard.
Tockstein said that's one of the main reasons to enjoy fireworks shows at a distance.
"A shell itself is basically a sphere of cardboard," he said.
Once the shell breaks, it falls to the ground as charred remains. It's perhaps the least exciting part of the show, but for the people setting everything up, it's a sign the end of a long workday is near.