Audrey Hepburn was seen in "Sabrina" in one of the most iconic gowns designed for her by Hubert de Givenchy, a little black dress with a signature 'bateau' neckline and shoulder ties.
Sewing your own copy of the "Sabrina" dress isn't really that difficult for a sewist with experience in sewing dresses. Classic and undated, it is a style as fresh today as it was when the movie was filmed.