I'm not really sold on the usefulness of this app, but it is kinda cool. Google have released an app that helps you create your own avatar in the style of Andy the Android. Whilst my phone's being fixed, I'm gutted I can't try this out, but if you do, be sure to upload and post your results in the comments below!
I may even set up a gallery of Overjoid Member's Avatars! The app can be found here.