Although Halloween just passed, it isn’t too late to grab your iPod a killer costume. And by costume, we mean protective case. And by protective case, we mean devil horns. The new Podstar line of iPod nano cases ($TBD; available this month) brings all the coolness of a costume with the security of a silicone case. Our favorite is the Diablo — the first and last case in the picture above — for obvious reasons.