Watermelon Juice popsicles & cubes

Watermelon was on sale and I bought a whole big one but I didn't think we'd eat it all. I was right. I cut about 1/4 of it into cubes and threw it in the blender. My friend Ann had given me some popsicle molds so that was my plan. I also knew that I should make some ice cubes with the juice because they would be great in sangria :)