Sand Trap

Step 1: Base

4x4 square with a door

Step 2:

Repeat step 1 twice

Step 3:

Place block in opposite corner than door

Step 4:

Remove back block that dimond on

Step 5:

Stack signs like this

Step 6:

Add signs to top

Step 7:

Stack up 2 layers on sand

Step 8:

Looks like this on inside

Step 9:

Cover it up

Step 10:

Let them break dimond and watch them suffer hahahahaha