Sorry Fireworks Items / entities that you hold in your hand and with a left click (for pc) on a block, it spawn the fireworks for examples (video): for example (text) : https://minecraft.gamepedia.com/Firework_Rocket I know the the team of TeaSpoon made it in a plugin but TeaSpoon is kinda bad.. And the actual Fireworks plugin is broken, in every ways, it should be in pocketmine.