3 oz of Midori melon liqueur (or watermelon liqueur)
grenadine syrup
green curacao liqueur (or Guavaberry Liqueur)
7-up soda (or Sprite)
Pour the melon liqueur onto two ice cubes in a highball glass. Add a few drops of green curacao, and fill with 7-up or sprite. Pour a few drops of grenadine in a way that will look like its shaping a stripe down the drink.