Button Soup was a favorite book from my childhood. I remember that my sisters and I would read and re-read it. What I didn't understand at the time was that it was a Disneyfied book from a Disney book where they take classic books and illustrate them with Disney characters and abridge the storyline.
Button Soup is a Disney version of the Stone Soup tale. In short, Daisy Duck visits her Uncle Scrooge. He is stingy but Daisy convinces him that she can make soup with just a button and a pot of water.
I found a very large red button and carefully hid it in a particular soup bowl. Since our girls didn't like soup, I told them that there was a button in one of the soup bowls. Whomever ate their soup and found the button would get to choose the dessert. Problem solved and they ate their soup! I reminded the girls to look for the button and we made a fuss when someone found it!
Looking back, it seems a little odd that I hid a button in the girls' soup. Just reading it sounds dangerous, but honestly, the button was huge and the girls were aware of it!