When summertime rolls in, I have this habit of hoarding fruits like berries, peaches and cantaloupes. And why not? They are at their sweetest and they're so cheap! I eat them for breakfast, some I freeze for later use and I also turn them into smoothies (add milk or yogurt to your choice of fruit and whiz in a blender):
I poured them into tiny tart pans. You can do the same using little paper cups, sauce containers or mini muffin tins, then put them in the freezer.
After about 20 minutes, take the tins out of the freezer and insert some popsicle sticks. The smoothie will be firm enough to hold the sticks in place. Return to the freezer to fully solidify.