Divide the thinly sliced strawberries into the popsicle molds. Pour an even amount of lemonade into each mold. Place the tops and sticks on, and pop into the freezer. If you (or your little ones), prefer not to bite into frozen fruit, you can puree the strawberries, mix them into the lemonade, then pour into the molds.
Freeze for at least 4 hours, though they are better if overnight. Once these are frozen solid, they can be removed from the popsicle molds and stored in airtight containers, in the freezer. The popsicles will store in the freeze for many months. Your mold is now empty and ready for many other variations of popsicle mixtures.