Batman's Rolling Whiskey Glass

From Bruce Wayne's personal collection, solving the age old dilemma: the cool and refreshing taste of liquor on the rocks, or the full flavor of a neat glass (no ice). Now you can savor the cool and smooth taste of drinking whiskey on the rocks without the normal dilution with an ice ball whiskey glass. Simply fill a 2" ice ball mold with water, freeze, and let the shaped whiskey glass guide the ice ball around the bottom of the glass, chilling and unlocking the aromatics of your drink as it rol