Google New Themes and Personalization
I'm loving these new Google themes for personalizing your email interface. You can choose from a variety, kind of like what you can do with Twitter and MySpace pages without having to code. I chose the artsy-sketch theme. The art switches randomly from a giraffe to a tall ice-cream cone... Very cute. It's also useful if you have multiple Gmail addresses to distinguish from opened on several browsers.
Speaking of personalization, I thought this was neat: Personalize the Flip Cam. The Flip Cam is a compact video camcorder that can take HD as well. It's compact, and around $220, and easy to upload. They give you the specs, and you can upload your design, which will be printed on your camcorder. Once you design the template, you can upload it onto Cafepress site, and if your design sells, you earn $10 per camcorder. They have a whole section of bestsellers and top designers, which are other options than using they're Pattern Generator.
I forgot to mention that a couple of the themes change according to weather information.