These rings were handmade from brass dollar coins and are available in sizes 5-11. The coin is first heated and annealed with a propane torch until red hot, and then a hole is punched through the center of it using a hydraulic press. The resulting 'O' shape is then folded perpendicularly into a funnel shape by forcing a large ball bearing into the hole using the press. The coin is further shaped and sized into a ring through stretching and compression tools. It is then polished to accentuate the relief design unique to that coin.