Squeeze oranges and lemons separately. Place 50 ml orange juice with 30 ml lemon juice, 60 ml rum, 50 ml pineapple juice, 20 ml grenadine, 1 tbsp. sugar syrup, 2-3 dashes of angostura and 5 ice cubes in a shaker and shake well.
Fill a long drink glass to 3⁄4 with ice cubes, strain the cocktail into the glass. Garnish with cherries, orange or pineapple. Prepare 3 more drinks in the same way.