In a large mixing bowl, cream together margarine and shortening. Add sugars, eggs and vanilla; mix well. Stir in oats, flour, baking power and baking soda.
When well blended, stir in coconut, pecans, Rice Krispies and chocolate chips.
When batter is thoroughly mixed, measure 1/4 cup batter for each cookie on a large ungreased baking sheet. Bake 10 to 12 minutes or until edges are golden. For a crisper cookie, bake 12 to 15 minutes. Allow cookies to cool slightly on baking sheet before removing. Makes about 4 dozen large cookies.