From the Dioresque Collection, my perennial favorite. has to be The MARILYN DRESS.  It's so 1950s in an allover Chantilly lace with a halter bodice. I bring out a different variation on this beauty about once every couple of years. The lace version above is definitely in the spirit of Christian Dior complete with net gloves and a horsehair picture hat. 
The below variation is as close to the Travilla version created in 1955 for Marilyn Monroe when she starred in The Seven Year Itch.  This one is a white crepe (sans the pleats) with generous yards of circular skirt.