GraveyardMall offers the Etched Monogram Rocks Glass 4-Pack in 13 5 letters ("A" pictured) for $9.99 plus $2.99 for shipping. At $3.25 per glass, that's the lowest total price we could find for any such set of glasses. These 10-oz. glasses feature a bubble base.

Update: Of note, "A" is pictured, but is currently out of stock.