Drop about 1/2 tsp of sugar into the bottom of a Collins or Hurricane glass. Pour in 1 1/2 oz of dark rum. Stir around in the bottom of the glass to dissolve the sugar. Fill the glass with ice. Add 3/4 oz coconut rum, 1/4 oz triple sec, 1/4 oz lime juice, and 3 oz pineapple juice. Shake vigorously. Garnish with a cherries, a lemon wedge, and a lime wedge. Pretend you are sitting in the Bahamas.