Scott over at Polite Dissent is also doing a Comic Book Cover Advent Calendar, and Greg at Raw Feed is too.
It'll be interesting to see if we duplicate at all. Unlikely, as I've identified about 200 different potential covers. (Although Greg--darn him--has already beat me to the punch on the Killer Snowmen from Strange Adventures!) Alas, none of them is a Christmas cover with a monkey. Can anyone help me on that score?