The Detroit Red Wings Octopus
In 1952, it took exactly eight wins -- two best-of-seven series -- to win the Stanley Cup. And so it seemed only natural that fishmongering brothers Pete and Jerry Cusimano threw an octopus onto the ice at the beginning of that year's playoffs, each tentacle symbolizing a needed win. In 1952, they got them -- all eight in a row, sweeping the playoffs and solidifying the enigmatic cephalopod's presence on playoff ice from that point forward.
Notably, during the 1995 playoffs, fishmongering co-workers Bob Dubisky and Larry Shotwell threw a 50-pound (22.7-kilogram) octopus onto the ice during the national anthem before the conference finals.