I showed this to my 9-year old daughter. After explaining it to her, her first question was 'Can I have one?'. I told her that it was a one-off. She then asked me to bookmark the page for her.
I am trying to get the graphics I made for the children's book I wrote with this concept (not yet published, but now it's time to try) uploaded in a decent form onto cafepress. I'll post if it comes out okay and I can sell t-shirts.