Part of the reason we feel so strongly about Christmas and similar winter solstice events is that they come with attendant decorations, music, and themes. They repeat every year, rituals that defy cynicism and modernity, sometimes reaching autonomic levels of response to them.
You may enjoy these effects. You may hate them. What matters is that they affect so many of us in this way.
What are ways we can incorporate these feelings into our work? What elements and themes might make a piece so strong it evokes something like winter holiday nostalgia in its audience? Solve that deep problem and make a thing that is powerful and irresistible. Well, given the proviso that Xmas music fatigue is the flip side of the seasonal coin, maybe sprinkle a bit of balance in with that solution.
The iconic moment brought to my mind the most this year is this quotation pair:
“Happy Christmas, Harry!”
“Happy Christmas, Ron.”
Simple is usually best.