When we got to the zoo, they had a station where you could buy duck food to feed the birds. I asked him if he wanted to, and he said yes. So...we proceeded to pump quarter after quarter into the machine so he could keep feeding the birds. He thought it was hysterical that they would all run over to him when he had food, and would swim away when the food was gone. A very simple lo: paper, pictures, a pen, flowers, Cricut-cut letters, brads and a few tiny pieces of rick rack.