This Marvel Subscription ad imposed Santa hats onto Marc Silvestri's X-Men. I'm not sure what this image was originally produced for, but I'm fairly certain it was used on a coffee mug. The image at bottom was taken from a comic produced for Marvel's stockholders. There's some horrible photoshopping on Rogue's head because part of her face and hair was missing in the original publication.
Merry X-Mas, mutants!