Robohash

Found this while working on a project. Really like the idea and the robots are too cute ;)

Definitely using for my next project as default avatars..

This is perfect. Definitely using this instead of the Gravatar default avatars on my next project. :)

@neuling2k this is really fresh and amazing loved it :) got some some awesome avatars for my next project.

Brilliant idea. I'll find a reason to use this somewhere.

what an incredible idea! so simple and versatile.