My mom always tried to keep my snacks healthy too. Off hand I can only remember my two favorites: Bugs-on-a-log (celery sticks with peanut butter smoothed down the center and raisins on top) or homemade fruit roll-ups (apple sauce dehydrated with cinnamon on top). You could probably experiment with blending and dehydrating other fruits for different flavors. I hope your son enjoys these treats. I'll post again, if I remember more.