I think you should make like a Christmas party type thing. Where you go through a house looking for items which you bring back to a npc and you get rewarded. Say like if the npc tells you to get uh... 60 dragon bones you'll get rewarded with a item like a rune (g) set or something like that what isn't to expensive and not that rare
Im making a Chstismas Quest /event right now. i will update it together with the New V1!