Mary Branscombe found this free little Windows Phone app that allows you to, among other things, digitally put a Santa cap on your head for the Christmas season. (Similar to what @darth famously does for well-known Twitter users)
From the app description:
Overlay your photos an item. Save or share with your friends your photos on facebook, twitter or any other accounts sharing you have!
- Possibility to move the item on the shot
- Ability to flip horizontally the item
- A gallery of item is proposed
- Share your photo with 6tag (instagram)
And again, it’s free. (They make their money on add-on content downloads.)
- DOWNLOAD: “Christmas Cam” for Windows Phone
http://www.windowsphone.com/en-us/store/app/christmas-cam/a310c87a-6760-4073-af9d-3b8b830cf00f