Amazon.com: Realeather Crafts Zinc Metal Rings, 3-Inch, 6-Pack (BRI-03-06)
Zinc die cast D ring 10 - 25 mm, Chrome Plated
Heart Temperature Change Zinc Alloy Mood Ring + Color Chart Gift Size 8.5 | eBay
Ring mix, imitation rhodium-plated "pewter" (zinc-based alloy) and acrylic, multicolored, 6mm color changing "mood" ring, sizes 6 to 9. Sold per pkg of 10. - Fire Mountain Gems and Beads