Lemonade popsicles are very simple to make. You freeze lemonade in the molds. Slice up some other fruits, add them to the mold first, and you have a much more interesting snack.
The one thing you need to consider is the space your popsicle stick will require. Make sure you can get it far enough into the mold even with the fruit there.
Use a good lemonade to keep it healthy. It’s easy to make on your own if you have some lemons around.