If you buy the new Castle of Illusions remake on the PS3 it comes with three avatars; Sugar Cube, Toy Soldier and Mickey in a suit of armor.
Woops, forgot they had Tron Evolution ones too; Abraxas, Anon, Gibson, Quorra and Tron. 0.49 each.
On the Xbox front you get a wider set of options ranging from two villians packs, Lion King pack and a Fantasia one.
To get these you have to manually search all gamerpics, they won't pop up via text search.
Villain Packs: http://gamer-pics.com/disneys-vile-villains/
Lion King: http://gamer-pics.com/lion-king/
Fantasia: http://gamer-pics.com/fantasia/
I'll post links to images of all the above later.
Just thought I'd give the heads up for those that like this type of stuff.