Avatar Maker - Create Your Own Avatar Online
Teachers - Get your own classroom avatar!
Minecraft avatar maker
I hope this Bobble head maker app is still free--get it while you can, it is seriously fun. So many options! http://www.smartappsforkids.com/2013/03/good-free-app-of-the-day-bobbleshop-bobble-head-avatar-maker.html
Where to find images to use in presentations that are under creative commons licence (list of websites)
27 of the best Avatar Makers
27 avatar creators
Free Anime Avatar Maker - Avachara is a web app that can be creative cartoon character.