umm... a hand-made christmas card? you don't have to worry if its gonna turn out ugly or what. As long as it shows that you've put in the effort to make it =)
i think Hand made cards are the best, cost savy and meaningful. Especially from a guy
well since most of the times girls are the ones who took the effort to make it.
Another alternative is you make a special photo album for her. preferbably having its hand made too. Collect all the photos you have taken together with her and compile them, having some quotes under them
don't worry too much. i think she'll like anything you give.