I'm currently running Paizo's Shackled City adventure path, and it's been awesome so far. We are only a little over half the way through it after almost a year, so I really have a no-nonsense, as little messing around as possible approach.
Which pretty much leaves no time for a Christmas special adventure. If I had a good one on hand, I might run it any way, but both scripting one up and interrupting the campaign with a one shot is too much to ask. I don't think I've ever seen a module or adventure about Christmas published. That's a shame. I should make a holiday special campaign, start it with a themed Halloween one, put in a Thanksgiving filler, top it off with a Christmas/new years combo.
Hrrrm, could even go further with Valentines day (Charm Arrows), Easter (were-rabbit), and April fools (pink dragons and blink mammoths).
images I am inflicting on my students in ~10 minutes
12 hours ago