Z = Zamboni While not directly related to Christmas, is often seen during the season at ice skating rinks, smoothing the ice for skaters.
Image enclosed; The fourth Zamboni ever built — they simply called it "No. 4" — sits enshrined in the U.S. Hockey Hall of Fame in Eveleth, Minnesota, along with its creator and inventor, Frank Zamboni. It stands, fully restored, as a symbol of the integral part this ice-resurfacing machine has played in professional hockey, as well as ice-skating shows and in ice rinks around the country.