I read about this project here and was planning to do it on my own, but the grrrls were interested in helping. The white lines are made with painter's tape, and each field is a different color, so it really is easy enough for children.
I like the way they turned out. Pearl's comment = they look like they were painted by real artists! Carrie's comment = don't worry Baba, I'll finish them tomorrow while you're at work.