It’s a good idea, haven’t heard of another app that offers this.
On the way to building a Gravatar app, we noticed that taking pictures of ourselves to update our Gravatars was something we only wanted to do every month or so, but then we started taking selfies and sharing them with each other and that became a daily and very fun habit. So our Gravatar app morphed into a Selfies app, and it’s now ready for the world to play with! You can read more about the app here. We hope you become one of the first brave souls to try it out, and let us know what you think.