This is the symbol for "St. Cuthbert" from Dungeons & Dragons 3rd edition. I created this as a prop for my fantasy cleric DragonCon costume ([link]). It's hard to tell from the photo, but the symbol is supposed to look like old, tarnished metal, which is why it's so rough.
Sculpey, costume jewels, suede lace, silver "hammered metal" spray paint, and black acrylic wash.
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Early to rise and early to bed
Makes a man healthy, but socially dead.