Atreides Base of Dune with eagle, Atreides Signet Ring Dune and Crysknife

The Crysk- is the traditional and sacred weapon of the Fremen, the warriors of the Arrakis desert. Made from sharpened sandworm teeth collected in a Fremen rite of passage, the ornately carved blade is engraved with intricate glyphs and patterns, making each Crysky unique and personal to those who have earned the honor of discovering it.