Just got this in my inbox...
Ho Ho Ho! Santa Hats and Beards for Everyone!
Like Easter Eggs? Here’s one you’ll love.
Add a note to a friend’s photo on flickr with the text “ho ho ho hat” or “ho ho ho beard” to add a santa hat or santa beard (respectively) to the photo instantly.
An early holiday friends from our friends at Flickr!
I haven't tried it but I am sure it will bring some Holiday cheer...