For the strawberry simple syrup: Combine sugar and water in a small sauce pan. Bring to a boil and cook just till sugar is completely dissolved. Remove from heat. Add in the strawberries. Let sit at least 30 minutes, up to 8 hours. Strain through a fine mesh sieve. Stir in a few drops of red food coloring to give a more vibrant color. Let cool completely and store in refrigerator.
For the pineapple simple syrup: Combine sugar and water in a small sauce pan. Bring to a boil and cook just till sugar is completely dissolved. Remove from heat. Add in the crushed pineapple. Let sit at least 30 minutes, up to 8 hours. Strain through a fine mesh sieve. Stir in a few drops of yellow food coloring to give a more vibrant color. Let cool completely and store in refrigerator.
Combine sugar and water in a small sauce pan. Bring to a boil and cook just till sugar is completely dissolved. Remove from heat. Stir in blueberry extract and a few drops of blue food coloring. Let cool completely and store in refrigerator.