Buy now: £2.98 / £2.97
You set this trick pen up by inserting a plastic cap inside it and when someone takes the top off the pen it detonates the cap making a loud bang scaring the living daylights out of your victim! The pen uses caps (not supplied) to produce the bang. The person who sets it off won't know what has happened until you tell them that they've been had! They come packaged with instructions. These are great fun for people of all ages to play with and they make great gifts.
