Megurine, It was the Winter Reindeer from last year that only gave out one key.

EDIT: I love this hair. It reminds me of the hair the heavenly maidens have in Korean folklore. It also reminds me of a hair that you showed in a quest item preview you showed a long time ago that you ended up having to redo because it didn't layer right.

EDIT: I didn't expect the background to be a room item. I'm not sure how I feel. On one hand, the doughnight background is traditional. On the other hand, the colour scheme this year makes it pretty close to last year's background.

I didn't even realize the background was a room item till I read Ziaheart's post. I think it's rather awesome, especially since I agree that the color scheme is very close to last years.
And I love more backgrounds for the rooms that aren't wallpaper. XD

The event seems to be in some strange inbetween state right now - the calendar is gone, but key fragments are still showing up?

I just saw a key fragment. Picked it up and got a server error. XD I noticed after that the doughnight calendar is gone anyways. The key fragments are still popping up though.

Starkad is not finished disabling the event yet.