I want to make my dad's bday cake w/ fluffy 7 minute/white mountain/ marshmellow frosting. I can't decide what type of layers. Normally I do coconut cake, but I want to do something different. Thought of strawberry cake, but it seems like it might turn out too sweet. Chocolate? Banana w/ sauteed banana filling? some sort of butter pecan layers w/ chopped pecans on the side of the frosting? Something S'Mores-ish? Ideas please!