Minecraft Creeper Trap. Once a player comes by it can break free and go after the player, leaving the plant ready to grow a new creeper. The gunpowder loot then falls into the funnels and from there, because they are connected to the box, is directed into the box.
Each trench is then filled in with water from above. To avoid this, cancel and sign in to youtube on your computer. This mob trap works by luring a creeper into the trap.