Humaaans - Mix-&-match illustrations of humans with a design library.
The Character Creator - aims to provide a fun and easy way to help you find a look for your characters.
Dotgrid - A simple vector illustration tool.
Avatar Maker - Create your own avatar online
IconStore - Free icon packs by first-class designers
South Park Avatar Creator - Create your own South Park alter-ego or make one of your family and friends!