Possible Christmas card

Just trying to get them made up soon, it's the first year I've decided to print a batch. I came across some 'Doctor Hoo' fan art a while back and thought it was the cutest thing ever and naturally seen as my Christmas is pretty much centered around Doctor Who nowadays, I figured it would be festive to have this idea. I just need to come up with some sort of greeting to put on it, one filled with puns and cheese. ^_^