Controls: Click to launch a firework. Space bar to enter edit mode, and space bar again to leave it. Up arrow to delete a firework. Down arrow to change what firework to launch.
If you want to delete the standard fireworks, they are named: standard, standard2, standard3 and standard4. If you launch too many large fireworks at the same time, some of them will either be missing parts or not show up, due to the clone limit. This is my first project in quite a while that was worth posting. May lag on slow computers.