After Guido accidentally hits him over the head with a flower planter he runs down to check on him and puts his six eggs in the man's hat. When he goes to put his hat back on, the eggs break on his head.
21What does Giosue hear they make out of the Jews who are killed?
Answer: Soap and buttons
When Giosue is playing with the other children after their arrival at the concentration camp, they tell him that the prisoners are thrown into an oven and their bodies are used for the production of soap and buttons.