Anybody got a link to a fun, colorful website or blog that could be good for explaining Bitcoin to kids?

Kids get to/ need to know how to manage cash from quite early on and they are remarkably IT savvy also, it seems like there should be a portal that can cater for them to understand it and then they can making small transaction amongst their friends, with their parents, siblings, or whatever. I know I had a savings account from age 7 or something, if they grow up with Bitcoins who knows what young imaginations can come up with?