My Darling Clementine has a great collection of Christmas cards this season. I love the bold colors and imagery while still feeling overtly festive and joyful. A perfect twist on the traditional images of the season. And it comes in wrapping paper!
They also designed a seasonal "treat" as they call it for the Tate Gallery in London as part of their Designer Christmas Cards range. You can check the special editions out online at the Tate shop.
Check out their website to see a range of their designs - for Christmas and beyond.