Even if you don’t know the reference for this mask, as in the game Army of Two, you will probably still find it pretty damn wicked. For some reason it reminds me of Batman when he was purchasing material for his headgear.
This Army of Two skull mask, perfect for halloween, is made form ABS plastic and is only $17.95. I’m not into mask buying but that seems cheap to me. Though you might get shafted on shipping.