If you're unfamiliar, Shire Post uses centuries-old metalworking techniques to create hand-pressed collectible coins. These coins have as many purposes as you can think of — from an everyday good-luck charm to a literal token of your appreciation for someone special. This particular limited edition number is made of solid iron, which has been blackened for a beautiful patina effect, and features a geographically-correct design of the moon's surface texture at a scale of 91,196,160 to 1. And with an inch-and-a-half diameter, it'll lend a nice heft to fiddle with. Believe you me, the astronomy buff — or anyone, really — in your life is gonna love this one.