We do "Crazy Waffles" every Saturday. Basically just the waffle mix of your choice, a little vanilla, a Tbs. of sugar, and then a 1/2 cup of nuts, chocolate chips, blueberries, apples, peaches or some other fruit.
The baby (19 mos) dumps in ingredients, big brother mixes, mom cooks 'em, and dad adds finishing touches (whipped cream, syrup, whatever).
Warning: M&M's don't work well.