I know my MIL used to make these, or at least something very similar to them, when her kids were young. They are super simple, nutritious and the kids can join in very easily. The last time we made them, they went FAST :)
Peanut Butter Balls
1/4 c honey
1/4 c peanut butter
1/2 c dry milk (more if the mixture seems too wet to easily roll into balls)
1/2 c add ins-chocolate chips, coconut flakes, nuts, seeds, dried fruit
Mix together, roll into balls and chill, if you can wait that long!