Using a blender or smoothie maker, blend together your banana, blueberries, yogurt, and water.
Layer your peach yogurt and blueberry smoothie in popsicle molds, leaving space at the top for expanding during the freezing process.
Add chunks of fresh blueberries and peach if desired.
Freeze for two hours or until frozen solid.
Hold popsicle molds under warm water for 30 seconds to easily release from the container.