American Toby Jug Museum 

Skull glass character jug produced by Luminarc USA of Millville, New Jersey, circa 2010. This pirate skull jug imagery is taken from the pirate symbol called the Jolly Roger. The Jolly Roger, or Skull-and-Crossbones, was first used by a French pirate, Emmanuel Wynne, about 1700. Historically, the skull and crossbones symbol were used by pirate ships to inform the targets they're about to attack. A smaller version of this pirate jug was also produced.