M-advent...

Right, sorry for a lack of posts lately - there was graduation and some other drama and it put me a bit behind. Anyway, here's today's festive treat:

I put up a cartoon but - oh no! - the Grinch has come along and made it all fuzzy and weird. Can you tell what's going on in the cartoon?

(Clue: Its one thats been put up a loooong time ago on the blog)