Engraved 40th Birthday whiskey, bourbon, scotch glass is a great way to celebrate a 40th birthday for any man or woman. Deeply carved using our sand carving technique, each whiskey, scotch, 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. Lead Free Crystal Rocks Glass Option: Want to upgrade your rocks glass quality? Select our Lead Free Crystal glass by Ravenscroft. Measuring 4 high, this quality crystal double old fashioned glass adds weight and style to your whiskey glass with a beautiful bubble feature in the center of the sham. We recommend hand washing your crystal bar glasses.