From left to right: For the maids, silk duchesse satin strapless tea-length dress, from $475, by Thread. Layered silk organza spaghetti-strap dress, from $355, by Thread. Strapless satin dress with tulle skirt, $260, BCBG Max Azria. Silk duchesse satin strapless dress, from $450, silk georgette dress with halter tie, from $480, both by Thread. Model on right wears satin sandals, $205, by Stuart Weitzman.