Some of Marilyn Monroe's most iconic looks of all time. From William Travilla to Orry Kelly, these are some of the most unforgettable designs ever put on screen. Which is your favourite? Or William Travilla, who designed some of Marilyn Monroe's most iconic costumes he worked on eight of her films is the designer behind the polka dot dress worn in The Seven Year Itch that Marilyn Monroe Famous Dresses White Dress A white dress, Marilyn Monroe wore in the 1955 film "The Seven Year Itch". It was created by costume designer William Travillaand describe as MG_MM003 : Marilyn Monroe Iconic Images