note. The popsicle mold that I used only needed 2 cups of popsicle juice. If you have a larger mold, just use more of everything to get the amount you need
Remove rind from watermelon and add to a blender with the lime juice, mint and blueberries. Blend until eveytthing is pureed and mixed all together. Pour liquid into popsicle molds and stick in freezer for at least 4 hours.