Frostmourne

The blade of the Lich King, scratch built from plywood, floor protection, old sofa, bolts and screws, googly eyes, steel wire, worblapie, cereal package, polyurethane foam and cast, broomstick, expanding foam, spackle, masking tape, wood buttons, cloth line and electronics. It is keyed to light up when held by the Lich King (and only him!) slowly and then fade off when released.