Soul coin

thingiverse

Soul coins were forged from a rare type of iron known as infernal iron, prized for its exceptional strength. Measuring 5 inches in width and 1 inch in thickness, these large coins typically weighed about 0.33 pounds or 150 grams. On both sides, intricate infernal script was etched onto the surface. Each soul coin harbored the essence of a single creature, forever trapped in torment and despair. As a result, non-evil creatures could only carry a few coins at most, while evil-aligned beings were not bound by such limitations, able to carry an unlimited number as they saw fit.