What item comes from what animal

Isaac has been begging me to take them back to the farm that is a mile from my house. It is free and only a mile away so I have no problems taking them there. I decided to make little matching cards for them. On one side of the card I drew pictures (don't look too closely, they are bad pictures) and on the other I drew pictures of things that come from these animals. Will also wanted to count them and write down the letter they each start with. Every time we go to the farm Will says that pillows come from geese. There are no geese at the farm but we drew a pillow and the boys decided that belonged to the chickens. They both have feathers right?