Set custom avatars for users with no Gravatar. The avatar will be the first (or any other) letter of user's name on a colorful background.
WP Custom Avatar adds the capability to change the default Avatar in your website.
Sets custom avatars for users without gravatar. Avatars will be replaced by first letter of usename (or e-mail) on a colorful background
A WordPress-BuddyPress plugin to set fancy custom avatars for users with no Gravatar and no profile picture.