Rene Rancourt
Here's what I miss about Boston: Rene Rancourt singing the National Anthem before Bruins games. He sounds like a drunk, tone-deaf Cowardly Lion, and it makes me smile every time. And when he's done, he points to the crowd, he salutes the flag, he pumps his fist, and he leaves the ice with a flourish.
I took Jen to a B's game when we were in Massachusetts for Christmas one year, and it happened to be the last home game before the holiday. So Jen not only got to hear the National Anthem, she also got to witness Rene's Christmas special, in which he sings carols while dancing around the Bruins' bench.