Between 1985 and 1999 Vince and Larry, two nightmarish, anthropomorphized crash test dummies, were the faces of PSAs made by the U.S. Department of Transportation to raise awareness about wearing a seat belt.
The campaign worked: safety belt usage jumped from 14% to 79%. Another thing that worked: The DOT was even able to get Iron Maiden to participate in the most metal safety belt-related public service announcement of all time.