I saw this at WM the other day and thought it would be a great coloring tool for O. She inspected it for quite a while. Then she colored with it a bit. She was disappointed that she couldn't make "tadoos" on her skin with it (and I was relieved). I hope she'll enjoy coloring with it more next time. I think its a great idea and very convenient. Also, the crayons are unbreakable, and there's no paper for her to peel off, which is nice. Although, I think peeling off the paper is her favorite thing about crayons :) I really want to get crayon rocks for her, but I think I'll wait until Christmas. Although, I need to go ahead and buy them since they are on sale! Here she is trying to trace her hand. She LOVES to trace her hand and our hands!