From Wikipedia: "One example of a mace capable of penetrating armor is the flanged mace. What makes a flanged mace different from other maces is the flanges, protruding edges of metal that allow it to dent or penetrate even the thickest armor. This variation of the mace did not become popular until significantly after knobbed maces. Although there are some references to flanged maces (bardoukion) as early as the Byzantine empire c. 900, (Ian Heath, "Armies of the Byzantine Empire 886-1118") it is commonly accepted that the flanged mace did not become popular in Europe until the 12th century, when it was simultaneously developed in Russia and the Middle East, from where it was borrowed."

This is a ~250-polygon flanged mace fit for many different applications.  It comes with three different materials for the metal parts, so you can have a mace that looks shiny and new, one that looks more pitted and used, or one that's rusty and old.