Heyâ¦foolsâ day is just around the corner, Iâm sure youâve already selected your targets and now it’s time to select your weapon! If youâre thinking of playing a light-hearted prank, then an inflatable tongue could well be the product youâre looking for. Available for $3.99, this tongue can inflate up to three times its original size, but do remember to keep it away from the kids.