Amazon offers the Libbey Cancun Margarita 7-Piece Glassware Set for $14.17. (Walmart has it for the same price via pickup.) Plus, Prime members bag free shipping. (Non-Prime members can spend $35 to bag free shipping; otherwise, it adds $10.14. ) That's the lowest total price we could find by $19. It includes six margarita glasses and one 89.5-ounce pitcher.

Update: It's now sold out at Amazon; however, Walmart still offers it for $14.17 with free Site-to-Store pickup.