It’s Mayday and out of the stable comes the Hobby Horse led by its Teaser - Oss oss wee oss is shouted by the crowd. This year Colonel Bate is donning the Obby Oss costume as he has done for the last fifty-six years. Traditional music of drums and accordion, and costumed dancers accompany the oss through the town. Is it a fertility rite of spring or to ward off the Viking invader? In the 1400s hobby horses use to be a small ponies but they became a costume often worn by Morris dancers.