Christmas Omake (Ideas and OoC)

So, we need something to twiddle our thumbs with while Smythe is busy doing Very Important Things, lest we will forget how to use our thumbs at all! Or roleplay, if you have something against thumbs.
So, I figured we should get some sort of Omake going, and since 'tis the season, what better way than to do something about Christmas in a world that it doesn't fit into!
So, (Apparently, I start a lot of my sentences like this) if you have an idea for what we could do for a Christmas Omake, please go ahead and suggest it.

Ideas:
Snowing in Seireitei - class-wide snowball fight, other shenanigans.

Uh we could possibly have a field trip out of seireitei. And they could go singing from door to door. Or something. Anything to get people back here.

So you wish to regather everyone for christmas eh? What if we're jewish? Then what? Huh?!

Other religions always get screwed over for Christmas in other things anyway, one more won't kill them.

Hmm... we'd need something to get us out of classes and such, what about some sort of festival that is usually held a wealthy noble family being held at the academy instead? People can decorate and just plain mess around as classes have to be canceled for the event.

YESSSSSSSS! That sounds like a awesome plan.