1/2 c Butter 1/2 c Icing sugar 1 Egg yolk 1/2 c Nuts 1/2 c Marachino cherries cut up 1/2 c Mashed banana 1 c Shredded cocoanut 1 t Vanilla Line a 8-8 pan with waxed paper. Cover bottom with layer of graham wafers. Mix above ingredients and put on the crackers, layer the top with crackers,then cover with an icing and refrigerate.