In art therapy, the self-portrait experiential is sometimes relevant.a variation here. Collage Self Portrait Instructions: A program for teens, or any age, really. Revised Instructions from Rachel Moani
Art Lessons for Kids: Thumbprint Self-Portrait. The kids make this based on their actual thumbprint and write a narrative about themselves. how old you are, things you like and don't like, your hopes and dreams for the future.
Mixed Media Self Portrait. Oil pastel and watercolor wash, artistic photograph, and poem. Children did the backgrounds, came up with words that described them and added it on top on canvas boards. Big wow factor for the parents. What an awesome idea!