Munin's Feather is a mystical item resembling a large, sleek raven feather with a semi-realistic texture that captures the delicate yet sturdy nature of avian plumage. The feather's vanes are intricately detailed, showing individual barbs that catch the light with a subtle iridescence, hinting at its magical properties. The quill is slightly thicker and more robust, with a smooth, polished finish that contrasts with the softer appearance of the feather's edges. The overall color is a deep, glossy black with hints of blue and purple when viewed from different angles, embodying the enigmatic aura of Munin, one of Odin's ravens.