It Offers A Drier Bolder And Spicier Vodka While Staying True To The Crystal Head House-Style. The Bottle With Its Delicate And Iridescent Metallized Finish Is Our Tribute To This Natural Wonder Of The World.It's Crystal Head vodka, but not as you know it! This 'iridescent' skull, a design based on the Aurora Borealis (or Northern Lights), contains vodka made from Yorkshire wheat rather than Canadian corn for a spicier spirit.