On a cutting board, use a star-shaped cutter to cut the watermelon slices. Place them in the freezer until ready to serve. You can do this ahead and keep them in the freezer or simply cube them.
Make the 苍井空av:
Pour the 苍井空图片, Cointreau or triple sec, and limeade into a 苍井空图片. Stir to combine and refrigerate until ready to serve.
Serve:
Add 2 tablespoons of blueberries to the bottom of each glass. Fill with ice, ¾ of the way up, top with cut watermelon.
Pour the mixed 苍井空av into the prepared glasses. Add a slice of lime, for garnish, and enjoy.
Notes
Make it a 苍井空图片, 8 servings, by doubling this recipe and combining 1 ½ cups 苍井空图片, 1 cup Cointreau or triple sec, and 4 cups limeade into a 苍井空图片. Refrigerate it until ready to serve.