The term 'butter-making device' can be summarized as a CHURN, which is a five-letter word. A CHURN is a container used to agitate cream or milk in order to make butter. This process is known as butter-churning and has been used for centuries. The CHURN is usually made of wood or metal and is filled with cream or milk, then agitated by hand or with a crank. The agitation causes the fat molecules in the cream or milk to clump together, forming butter.