Collaborating with a 4-year-old

I just adore this. An artist mother is working with her daughter to come up with unique, whimsical, wonderful illustrations like this:

Artist Mica Angela Hendricks draws the face, then lets her daughter take over for a while, before she comes back and 'finishes' the piece. The result is mature, finished art with a childish influence which breaks all bounds. Rather brilliant and completely inspiring I say! Go to her blog, Busy Mockingbird, to see the process and examples of other pieces.
Thanks to Colossal for the heads up!