This mod gives you the ability to launch fireworks, 8 different colors and 8 different effects. And you can also enable the option of firing fireworks from weapons. Installation: automatic via OpenIV.
Controls: Insert- show mod menu Key 0 (not numpad) - get fireworks E- change color of fireworks Left mouse button - throw fireworks Hold middle key- to spawn fireworks on the ground every 400ms
You can change the assignment of the keys in the .ini file