You thought you were going for a nice, relaxing evening of fun with your friends at the bowling alley. But then went to pick up your ball from the return tray and found yourself holding up a grotesque, decapitated head by its bloody, vacant eye socket and deformed nostril. After you realize you're just the victim of a clever advertising prank—artwork by spraygun artist Oliver Paass, for horror-themed German TV channel 13th Street—you might return to a normal heart rate and keep hitting strikes. Or you might be a creeped-out, nervous wreck and spend the rest of the night throwing gutter balls. Via Creative Criminals.