1/2 oz of Midori melon liqueur (or watermelon liqueur)
1/2 oz of lemon vodka (or citrus-infused vodka)
1/2 oz of sweet and sour mix
ice cubes (or ice)
1/2 oz of Malibu coconut rum (or Coconut Rum)
Shake with ice, strain into a whiskey sour glass, and serve.