Leave this envelope laying on the table. It is clearly labeled WARNING “Do Not Open!”. But when curiosity gets the better of them, they will pick up the envelope and peek inside…SURPRISE! That is when the special contraption is released! It noisily rattles and bangs about inside the envelope, frightening your victim into believing there is rattle snake inside! This is intended as a playful PRANK, and teaches the prankster patience, as it is only successful when the victim does not realise they are being tricked.
BONUS! The special rattling device can also double up as a whoopee-cushion, creating an alternative tune for those looking to increase their musical instrument repertoire.