We do a one shot holiday special. I am the forever DM for our group with the exception of this one session. It’s usually a high level, gonzo adventure that revolves around some sort of Christmas theme. Last year we had to recover Santa’s sleigh from an island fortress where an Enter the Dragon style tournament was taking place. There’s a good deal of drinking and holiday cheer, so it usually devolves into childish shenanigans, but we always have fun doing it.