These stainless steel whiskey stones are quite classy and very effective. Instead of using ice to chill a drink, these stones can be used for the same effect without having the drink become watered down by melting ice.
Using the whiskey stones is easy – simply put them in the freezer for at least a couple of hours before using them, then add them to the drink you want to chill / keep chilled. (You’ll feel very Mad Men-ish when you give your glass a clinky little swirl). Once you’re done, wash and return to the freezer.