While I think anybody who rides a motorcycle without a full-faced helmet has a wish to have their jaw sheared off and wrapped around their trachea like a bone choker, I have a feeling the chopper-and-hog set have few such concerns. And as such, this Skull Helmet from Santiago Chopper meets their primary criterion: open-throttle badassery.
It's $150. Update: Kurt L. adds: "The skull helmet is out of stock and not DOT or Snell approved." Who cares? I'll see you in Snell!