What is the purpose of a groom's cake? We are having s'mores instead of a cake and having a "s'mores making" instead of a cake cutting....and then also having a dessert bar.... so would it be odd if we had only a groom's cake? Would people still eat the cake, or would it be more for show? And if we do have people eat the cake, how many servings would you suggest? I dont want it to be a huge cake, and we are having around 100 guests.... Any ideas?