TheseĀ Clap Activated, Voice Activated and Motion Activated prank stickers will help you make fools out of your friends, co-workers, or just unsuspecting strangers at the bar. Stick these on hand dryers, vending machines water fountains, coffee makers, doors and more, and watch as the hilarity ensues. If there’s a better way to make normal people look crazy, we can’t think of one.