Indeed there is a "Rich Dad Poor Dad" affiliate program and you can join for free by clicking on this banner:


You will be offering others the opportunity to improve their own financial future and teach their children sound financial advice. In return, the "Rich Dad Poor Dad" company will pay you a percentage on any sales generated by visits to their website. The program offers a wide range of banners and links for you to add to your website(s).
You can target specific products like this game aimed at children:


Children can learn sound financial skills which has to be a better use of their time than killing computer generated monsters!