Over on my Blimey! blog I've presented a collection of Christmas comic covers from the years 1898 to 1998. Quite an array, and I've included one for which I drew part of the cover. It was the Christmas issue of Action Force in 1987 and editor Richard Starkings thought it'd be nice to do a split cover featuring the main feature by Jeff Anderson and Combat Colin by me. That's it above, as I'm sure you've noticed.
You can see a compendium of festive covers by others at my Blimey! blog at this link: