You have got to love teenagers. Today, DD showed me a whole new website on which to manipulate photos. Mind you, her creativity is far better than mine but here is an example of what you can do:
Certainly, my changes are not that extreme but you can add mustaches, Santa hats; change photos into drawings or paintings. There are tons of interesting things you can do. Check it out.
I will say that you can perhaps use this if you haven't managed to get your Christmas Cards out and you can even use the excuse that you are trying to go green.