Mix graham cracker crumbs and 6 tablespoons softened butter. Pat into 9 x 13 pan. Mix 1/2 cup softened butter, confectioners’ sugar, and egg whites. Beat until smooth. Spread over crumbs. Slice bananas over this layer. Place drained crushed pineapple over banana layer. Spread whipped topping over pineapple and bananas. Sprinkle chopped pecans over whipped topping. Place maraschino cherries over pecans. Refrigerate.