Mi Dia From Scratch in Plano, TX, is offering $5, $8 and $10 sipping tequila flights, as well as 25 percent off of extra Anejo tequila full-ounce and half-ounce shots. Margarita choices include the Hell Freezes Over, combining Green Chile Infused Herradura Silver tequila, Cointreau, cucumber, basil and dry ice.