1 oz of white rum (or Light Rum)
1/2 oz of Dark rum
1 oz of Orange Juice
1/4 oz of Lime Juice
2 tbsp of Mango Sherbet
1 tsp of grenadine syrup
1/2 oz of coconut rum
Blend all ingredients (except grenadine) briefly with half a glassful of crushed ice. Sprinkle grenadine on top, garnish with fruit, and serve.