It's hard to think of anything more American than these Whiskey Bullets. These faux stainless steel bullets work exactly like soapstones in that they cool drinks without watering them down. Unlike soapstones they are much bigger and heavier. Each one weighs 8 ounces and stands 2.5 inches tall. In a normal rocks glass they'll easily break the liquor line (aka the water line).
Size and weight aside, the Whiskey Bullets are perhaps one of the most unique ways to cool down a glass of booze. All that uniqueness doesn't come cheap, though. A pack of six Whiskey Bullets runs $44.99 and the holding cylinder is and additional $24.99. At that price point it might just be cheaper to buy regular bullets.