It seems like every iPod/iPhone accessory developer on the planet is getting into the earphone racket these days with Chinese-made canalphones, and now we can add well-known film and case maker BodyGuardz/NLU to the list of examples. Using two-toned metal bodies in some unusual color combinations -- rust brown with silver rings or glossy black with blue rings -- BodyGuardz has released Earjax Moxy ($65), with a mic-laden version going for…