In a small microwavable bowl, combine 2 tablespoons of water with 2 tablespoons of granulated sugar. Microwave for 45 seconds until warm, then stir until the sugar dissolves to create a simple syrup. Allow it to cool.

In a large pitcher, pour in the cooled simple syrup, followed by 16 ounces of lemon-lime soda. Add ½ teaspoon of coconut extract and 3-4 drops of blue food coloring. Stir gently to combine while maintaining soda carbonation.

Fill tall glasses with ice, then pour the mixture over the ice, filling to your desired level. Optionally garnish with shark gummies or Swedish fish.