The coolest cards we've seen - because you're the designer.  Use your own pictures, artwork or depend on one of  their British artists to help you create a unique calling card.  Moo.com out of the UK specializes in printing unique business cards -- each one can have a different design/photo and you can even get them in kid size.  They've got a great selection of holiday cards ready for you to personalize and our new favorite -- stickers!