Purchased these double walled Snow Flake Mugs last year, and love them.  The design really adds to the Holiday feel.  Very festive, and a real show stopper.  Love to serve my Hot Chocolates, Cappuccino, Irish Coffees, and Eggnogs in these mugs.  The two layers of glass really helps keep beverages hot for longer periods of time.,  They are also, microwavable, and dishwasher safe which is a definite plus around holiday times.  These mugs elevate your spirits  and add some pizzazz to your table.