My elementary school's "Pancake and Latke Breakfast and Christmas Tree Sale" is one for the ages. The yearly event saw our basketball court transformed into a sale floor full of Christmas trees (My family never got one. We had an artificial tree). For weeks afterward you could still find little pine twigs around during recess.
Our wonderful music teacher (as seen in "Music Class") taught each grade level a holiday or winter-themed song to sing at the event. Sometimes these were original, like "rapping up the holidays", and some were edited versions of popular carols to be more suited for little children and include as many holidays as possible (no "mistletoe hung where you can see", that's "the candles glow brightens every heart"!).
Of course there was also the "breakfast" part where volunteers served food out of our cafeteria, which families ate on the lunchroom tables covered in brown paper. There were pancakes, latkes (potato pancakes often eaten during Hanukkah) and applesauce served out of a big tub with a spoon. I remember being fascinated by this because the applesauce I ate at home was in single-serving packages.