In a large mixing bowl, cream the wet ingredients with a mixer till smooth (1-2 minutes). Sift in dry ingredients, blend thoroughly. Then stir in zucchini and chocolate and peanut butter chips by hand. Spoon batter into muffin tins (with liners) fill 2/3 of the way full. Makes 24 muffins. Bake at 350 for 20-24 minutes.