HeroMachine - Create your own super-hero, sci-fi, or fantasy character sketch
Avatar Maker - Create your own avatar online
South Park Avatar Creator - Create your own South Park alter-ego or make one of your family and friends!
The Character Creator - aims to provide a fun and easy way to help you find a look for your characters.
Pony Creator by Pony Lumen - Make "My Little Pony" style characters in 3D