I have an idea for a plugin. Using some custom crafting, you make a rainblower (diamond hoe with unbreaking X and custom lore). right (or left, i dont care) clicking will launch a large ammount of rainbow firework particles at someone and set them on fire. I hope you can make this work!
Already almost done. Edit: I kinda got stuck, I have pretty much everything there, just missing something. If someone wants to take this over, message me and I'll send you the almost finished source. Wait, wouldn't it be this: http://forums.bukkit.org/threads/inverse-request-rocket-launcher.119803/ EDIT by Moderator: merged posts, please use the edit button instead of double posting.