As project manager for CSLA online web 2.0 courses, I get to welcome new students and learn all sorts of new cool tools that they discover. Today, a "student" introduced me to MadMen avatars. What a kick!
Once you select an avatar, outfit, accessories, and background, you then pick which view you want: face (for Twitter and Facebook), top half of avatar (Facebook and iPhones), or full screen for your monitor wallpaper. All the while you are making your avatar, music is playing. The music is fun at first, but will soon drive you crazy! Enjoy!