From Wikipedia: "A straight razor is a razor with a blade that can fold into its handle.[1] They are also called open razors and cut-throat razors.[2][3][4]"

This device used to be the "cutting edge" in men's grooming technology, and is still in use in some barber shops during modern times.  It can also double as a weapon -- like an old-fashioned switchblade of sorts.  178 faces or 288 triangles, a single bone for opening/closing, and procedural textures.