This year some friends of mine have used a 1903 Christmas postcard to make their own Christmas cards:
You can see the back of the postcard on their flickr page http://www.flickr.com/photos/22278001@N08/4194774582/
I think it’s a great idea and what a gorgeous result.
You can read more about what is believed to be the oldest Christmas card here (from the mid 1800s). I wonder how old the oldest Christmas postcard is?
Postcard verso 