There is considerable variation in physical appearance of the "duda" in Hungary, but the most common form has a chanter stock in the form of an animal’s head (usually that of a goat-like animal) and a cow horn bell on both the "kontra" and the drone. Historically the bag was often made from dog skin (leading to a popular song that stated that prospective bagpipers needed to “go to hell because that’s where the big dogs are from which good bagpipes can be made”), but today goat skin is a much more common material.