Mari Lwyd is a Welsh Christmas folk custom. It is believed to be a survival of a pre Christian ritual, also the tradition has been documented since the 1800s. The figure is a horse skull put on a stick and decorated with ribbons and a sheet. The mare is accompanied by a group of men who go to homes and sing carols. It is traditional for a battle of wits to occur and for the Mari Lwyd to be invited in for treats and refreshments afterward. The tradition is associated with the practice of wassailing.