Fireworks explosion on lijiang tower

Does anyone know if its possible to somehow make fireworks on Lijiang Tower to explode on their own? im looking for it for my mercy parkour map so preferably that the fireworks explode in the very end of the map

the only way i could think of is with create projectile since they should be able to interact with any collision stuff.

store the firework positions in an array and then create a projectile with AOE of 0 damage on one of those positions. (if 0 doesn’t work just deal 1 damage and try to heal it back if done to any player, or just leave it. Up to you)