2 oz of Pineapple Juice
2 oz of sweet and sour mix
1 oz of Malibu coconut rum (or Coconut Rum)
1 oz of Midori melon liqueur (or watermelon liqueur)
1/2 oz of blue curacao liqueur
1 splash of 7-up soda (or Sprite)
Pour the Malibu rum, Midori melon liqueur, blue curacao and pineapple juice into a cocktail shaker half-filled with ice cubes. Shake well, and strain into a highball glass. Top with 7-up, and stir briefly. Garnish with a maraschino cherry and a pineapple flag, and serve.