This is a Minecraft mob launcher I discovered when I filled a hole with mobs as a prank to lag my friends world. Then, I accidentily added water. This happened.

This was not easy to clean up. Please do not try if you like your world.

Step 1: Get Materials

•Blocks of your choice(X11)

•Spawn eggs, lots of them or you need to be in creative mode (X1,000)

•Water buckets (X1)

Step 2: Build!

Get your 11 blocks and build a structure like a 3x3 cube but without the corners. Then add one block on top, It dos'nt matter on which block, any will do.

Step 3: Tap Like Mad.......

Now, you have my perrmision to tap, tap like mad to spawn your mobs. Need I explain how many? No? Well I'm gonna and there is nothing you can do about it. Put like, until your world is laggy.