We're Ed Emberley fans here and our first introduction to his books was through our local library where we found a copy of his first thumbprint drawing book from 1977. His website is fun too and includes an excellent holiday activity page here.
His thumbprint art (and an image somewhere on flickr that I can no longer find) was the inspiration for this year's Christmas cards. A fun little activity with all the family joining in.
Done! I have never been this early with my Christmas cards before.