1/2 oz of Cointreau (or orange liqueur)
1/2 oz of white rum
1/2 oz of brown rum
1/2 oz of Lemon Juice
1/2 oz of Pineapple Juice
1/2 oz of strawberry syrup
1/2 oz of grenadine syrup
Put all the ingredients in a shaker and shake it on ice. Serve the drink very cold.