Intro: Sand Trap ( Minecraft )
Make two stacks out 3 wool each
Put a diamond ( or anything valuable ) on the left side then put one on the right of the one you just put
Then delete the one you put on the left stack for there's just one in the middle
Put two blocks of sand on top of the diamond block
Cover the sand with wool or any other kind of block
When someone goes to get the diamond
The sand will fall on them !!!!!