Avatar making project for kids game

I want children to be able to make their own Sumo character with the choice of different eyes, hair, etc Please see the attachment from the folloiwing link <[login to view URL]> this is the type of thing I am after but you will use the attached sumo characters as the base. Children can then choose their own features to make their character unique. No clothes or body changes it will be purely facial features and hair that can be changed.