We have a tradition in my family on my moms side where the mother gifts the child his placenta on his 18th birthday, and every subsequent Mother’s Day the child bakes his mother a cake. Only one year, the child bakes the placenta into a cake and the mother has to guess if the cake has or doesn’t have the placenta in it. If the mother gets it wrong, then he earns the entire inheritance, and if multiple children successfully trick the mother then the inheritance is split evenly between them. If no one wins the inheritance, then the money is donated to whoever the richest person in the world is at the time. It’s a fun way to make a game out of life.