shillelagh

A shillelagh is a wooden walking stick and club or cudgel, typically made from a stout knotty stick with a large knob at the top, that is associated with Ireland and Irish folklore.
Shillelaghs are traditionally made from blackthorn wood or oak. The wood would be smeared with butter and placed up a chimney to cure, giving the Shillelagh its typical black shiny appearance. Shillelaghs may be hollowed at the heavy "hitting" end and filled with molten lead to increase the weight beyond the typical two pounds; this sort of Shillelagh is known as a loaded stick. They are commonly the length of a walking stick (distance from the floor to one's wrist with elbow slightly bent). Most also have a heavy knob for a handle which can be used for striking as well as parrying and disarming an opponent. Many shillelaghs also have a strap attached (hence the Irish name), similar to commercially made walking sticks, to place around the holder's wrist.