This is an alternative, historically more accurate 6-sided die for the Royal Game of Ur.
It provides either a 0 or a 1 result, with both occurring with equal probability.
The historical game had tetraeder-shaped dice, but these are not as convenient to handle and don't fit well into Vice's beautiful gameboard.
These dice are intended to replace the dice included in Vice's design and fit into the storage recess in the gameboard.
It's an easy-print version that requires no assembly, no multi-material printer and no supports.
OpenSCAD source included.
The author remixed this model.