Crystal Head Vodka. Packaged in a suitably sized glass skull. Not only is it one of the best bottles we've ever seen, it's also a great vodka, and is filtered seven times, three of them through crystals known as Herkimer diamonds.
The result was perfect vodka, with absolutely no additives. No glycol (an ingredient for engine anti-freeze); no citrus oil (used in its raw form as an insect exterminant); and no raw sugar. Nothing was needed, because it was abundantly clear that finely produced vodka came by its smoothness and flavor naturally.