Here's how to make the Sky Blue Acai Sour - courtesy of Eddie Schneckloth of Sky Blue at The Sky Lodge:

1.5 oz Absolut Acai Berry Vodka
Splash Blue Curacao
1 oz Lemon Juice
1 heaping tsp. Powdered Sugar
Fresh blueberries for garnish
Shake first 4 ingredients with ice, pour over rocks, garnish with 3 blueberries.