When I first laid eyes upon this festive way to serve drinks, I was at the Carnaval de Quebec, in Quebec City, where most everything is made of ice! Their annual winter carnival is loads of fun and a must see! (Dress warmly, though) here is a link to the 2011 festivities:
Anyway, here is an amusing way to "wow" your guests, anytime of the year...ice shot glasses!
These fun little guys are easy to make and then store in a zip lock bag in the freezer. The molds are made by a company named "Fred" and I purchased them at my local Homegoods. The molds are also available at Amazon.com