Join the fun — add a santa hat to your Twitter icon. Just login with your Twitter account, go through the very short two steps, and your picture will be automatically update. No sweat, no Photoshop.
The site doesn’t work under IE6, because I used a number of PNG images with 8-bit transparency. Most of them are not a big deal, but the transparent santa hat that sits over the profile image is, unless you don’t want to drag around the hat.
I'm on Twitter!