The Pocket Referee
A version of this decision coin was invented 30 years ago by Jennifer Vraney's father, George Vraney, for use with her and her sister. Jennifer and her sister would stay with their dad for summers and all the silly things they fought about drove him bananas! This coin worked like a charm. Jennifer's sister, being older, figured out the strategy behind it. Jennifer never really did, but that didn't matter because both sisters won in every situation. All their dad had to say was "who has the coin" and that person would figure out what to do. Two years ago, Jennifer asked her father if he'd be interested in taking the Pocket Referee to market with her, and the rest is history!