ok so this is a cool way to trick your friend/teamate/enemy BLOW UP
Step 1: Preperation
do not do this in a fancy house or something that you do not want to BLOW UP
dig 2 spaces down into the ground.
Step 2: TNT Time
place either 2 peices of TNT next to eachother or one depending on how many chests
Step 3: Topping
add the normal floor on top of the TNT so its discreat
Step 4: Chest Time
place a "TRAPPED CHEST" on top of the floor above the TNT
Step 5: CABOOM TIME !!
wait for your participant to open the chest
smile at your self because you are evil :D
Step 6: Important Notice
I done this on xbox
I finally got a camera guys :D
not a good one but you can see the image thanks instructibles !!!