Gerry Cheevers, Boston Bruins

After a puck hit his plain white mask during practice, Boston Bruins goalie Gerry Cheevers had the trainer put a stitch mark where he would have gotten hit if he hadn't worn the mask. The tradition continued from there until there was hardly any room left on the future Hall of Famer's mask by the end of his career. (Bruce Bennett Studios and Melchior DiGiacomo/Getty Images)