Minted Watermelon and Lemon Ice Pops

Scrumpdillyicious! I made just the Watermelon Mint portion of these popsicles and they were so yummy, so refreshing. I enjoyed them so much, I'm thinking about making a large batch of the mint simple sugar ahead of time, so it's ready whenever I want to make them - just add the blended fruit. Does anyone know if it simple sugar will keep?

Tastes good, very simple to make. My cats thoroughly enjoyed them. My dog, on the other hand, hated them. When I fed them to my cat he said meoooooowwww!!!