Exploding Toilet Seat + Bang Pen + 96 Caps
Load a cap into the Exploding Toilet Seat device and slip it under the toilet seat. when they lift the lid to go... BANG! And for that annoying person that always borrows your pen. Just load a cap in the Bang Pen device, place the top back on the pen and your set. Give them the pen and stand back for a good laugh. Because when they remove the top... BANG!
The Perfect "GOT YOU" prank!