A hobby horse (or hobby-horse) is a chil's toy horse, particularly popular during the days before cars. Just as children today imitate adults driving cars, so, in former times, children played at riding a wooden hobby-horse made of a straight stick with a small horse's head (of wood or stuffed fabric), and perhaps reins, attached to one end. The bottom end of the stick sometimes had a small wheel or wheels attached. This toy was also sometimes known as a cock horse (as in the nursery rhyme Ride a cock horse to Banbury Cross).