Another one of my no-flame-required, kid-friendly recipes. I remember making these in my after school program in grade school and loving them. They are a great wholesome activity for kids parties...just make sure an adult slices the apples. My favorite Apples to use are Pink Lady because the tart flavor is a nice compliment to the Peanut Butter. For a healthier variation, use cubed Slightly Green Bananas instead of Marshmallows...ripe bananas may be mushy. If you are worried about Peanut Butter allergies, substitute Cashew Nut butter as it is far less common to be allergic to.