JJ, I loved this idea so much I implemented it with my family with a few modifications (I'm an engineer and gotta tinker!). I published an article about our version. Don't worry, I gave you the credit and linked to this article and to your profile. I've also ordered your book and look forward to reading it when it arrive.

https://medium.com/datadriveninvestor/a-new-way-to-teach-your-kids-about-investing-c7c2707ca934