During the FSNY broadcast of one of the Devils broadcasts last series, Emrick made mention to Resch that the playoff beard began with Resch's Islander team. Not sure if that's the case or not but worth mentioning.
A playoff-beard is the superstitious practice of a National Hockey League (NHL) player not shaving his beard during the Stanley Cup playoffs. The player stops shaving when his team enters the playoffs and does not shave until his team is eliminated or wins the Stanley Cup. It is believed that the tradition was started in the 1980s by the New York Islanders. The tradition is also practiced by nearly all North American Hockey leagues, to include High School Leagues and the NCAA hockey teams. The tradition has also spread to hockey leagues in Europe.