Noting that this Thursday, May 31, is a blue moon (the name for the rare occurrence of a second full moon in one calendar month), Tres Agaves has come up with the notably gimmicky promotion of creating a high-end cocktail for the occasion and offering it only on this day.

The Luna Azul cocktail will contain rare Penca Azul reposado tequila, blueberry nectar, lime juice and agave nectar--sort of a high-end blueberita or a blueberrytini made with tequila instead of vodka. The good news is that this drink, which is valued at $18, will be going for only $7 on Thursday. Enjoy.