There are many whiskey drinkers out there who would welcome the invention of some sort of whiskey glass lid to keep out all impurities—ice included. Us, we happen to like a couple of fingers chilled. The thing both sides can agree on is ice from your fridge dispenser has no place making a splash landing in some Jack. If you happen to like your drink on the rocks but hate the fact that you end up diluting whatever you’re imbibing, invest in this Roller Rock Glass. Just freeze up a 2″ ice ball with the included mold and drop that sucker in the glass. The glass is designed to let the ice roll across the bottom and open up all the aromatics your drink has stored away while it chills without diluting. Plus, swirling it at a cocktail party while pondering some deep thoughts will surely attract some ladies.