Sometimes when making these watermelon popsicles, the watermelon and liquid will separate during freezing, making it two-toned. This won’t affect the flavor at all, but it will change the appearance slightly. In order to avoid it, you can stir the popsicles 1 hour into freezing to help disperse the separated liquid before reassembling the mold. While the color may be affected, it still tastes just as good, so you can totally skip that step if you don’t feel like stirring mid-freeze!