 Accompanied by drums and accordions and led by acolytes known as "Teasers", each 'oss is adorned by a gruesome mask and black, oilskin cape on a circular frame under which they try to catch young maidens as they pass through the town.The Blue ribbon 'oss is apparently of more recent origin.In the late 19th century, Blue 'Oss was supported by members of the Temperance movement who were trying to discourage the consumption of alcohol associated with the "old" 'oss followers.