My fiance and I are having around 90 people to our September wedding and I'm not sure how many hors d'oeuvres to have for the cocktail hour. Cocktail hour will be a standard 1 hour affair as we are having the ceremony, pictures and reception in the same place and we're having a big buffet, candy bar, and cake as well. If we have only passed hors d'oeuvres, how many different kinds should we get to serve 90 people?