I'm spending Christmas day at the house of some family members who I adore. They're sorting everything for the meal for around 20 people. Some people are bringing food, but I'm travelling from abroad so it's trickier. The family are well off (through years of hard work) so wouldn't expect a contribution in that sense.
I'm useless at this sort of social thing, even with close family. Would you send some beautiful flowers after the event? Any other ideas?