Tali, commonly known today as Knucklebones, was perhaps the most popular|
game played among the Romans. It resembled the game of dice except that
sets of marked bones were used, called tali. Tali was inherited from the
Ancient Greeks, who had originally made the pieces from astragali, or
the knucklebones of sheep or goats.
The Romans would also make them from silver, brass, gold, ivory, marble,
wood, bone, bronze, glass, terracotta, and precious gems.The original
shape of the tali, however, was preserved.
These shapes would sit on one of four sides when dropped.
(Text copied from Roman dice/tali, where you can also find more info.)