The beauty of these genius prank sound cards is in their simplicity; pull off the tag, press the button, and stick it behind a sofa, under a desk, or wherever takes your fancy. The card will then make annoying sounds at random intervals every few minutes.Choose your weapon from a cat meowing, a phone vibrating or a rubber chicken honking, then hide the card and watch in delight as your victim turns the room upside down trying to figure out where the noise is coming from.When they do eventually find the card, they’ll soon discover that there’s no off button. In a stroke of pure genius, the only way to stop the noise is to rip up the card, releasing all of the annoying glitter inside. It’s the ultimate in prank perfection.