hyrme.com - demos

Avatar Gallery extended functionality with support for:
OG galleries
random avatar block
new user avatar block
author avatar block
limiting number of avatars per page
limit the roles that are displayed in avatars (i.e. hide admin users)
CSS styling for avatar images and avatar pages.

http://drupal.hyrme.com/mods/avatars/site/all
Read about it and download it here http://www.hyrme.com/node/17