Customized Vintage Year whiskey Glass. Customized Vintage Year Birthday Rocks Glass has the year of birth and "Aged to Perfection" engraved in a keepsake birthday gift double old fashioned glass. Can be used to celebrate every birthday for years to come and makes a beautiful display. Deeply carved using our sand carving technique, each scotch, whiskey or bourbon glass is meticulously custom made to order making it the perfect gift for those seeking unique gift ideas for whiskey lovers - men and women alike. Our engraved rocks glass provides a generous 13.5 ounces to hold your nectar of the gods. A set of these personalized bourbon glasses will be the favorite gift at any special gift giving occasion. Dishwasher safe.