Walmart offers the Libbey Cancun Margarita 7-Piece Glassware Set for $12.22. (Amazon has it for the same price with free shipping for Prime members.) Choose in-store pickup to avoid the $4.97 shipping fee. That's $2 under last winter's mention and the lowest price we've seen. (It's a current price low by $14.) It includes six margarita glasses and one 89.5-oz. pitcher.