Here is a Ball Head War Club that I just finished. Made of hard maple. Why? Why not!
It is about 24″ long with a 2 1/2″ ball on top.
It is similar to a club housed at the DIA identified as a, “Northwest Plains, Native American Ball Head Club, ca. 1800” They also have one listed as, “Potawatomi, Native American, Miniature War Club, ca. 1850” and “Chippewa, Native American, War Club, ca. 1800” that have similar profiles, but flat handles.