Smooth as Tennessee Whiskey Rocks Glass. Folks love the whiskey and the song. This is a 11 oz heavy base rocks glass deep etched with high detail. This whiskey glass makes a wonderful gift for whiskey and music lovers everywhere. Our engraved glasses include a wonderful collection of whiskey lovers quotes as well as motivating sports quotes and other popular art. All of our glass and crystal products are manufactured by deep etch sand-carving. Sand-carving involves using compressed air to force a stream of abrasive through a nozzle and onto the glass to etch or carve a design. Versatility and superior end results are the primary reasons for choosing this method for etching glass and crystal products. "