A few days ago, my mother in law gave me some dresses that belonged to her mother. I love them all, and really wanted to photograph the dress from the '20's for you, but my mannequin is too big for it! So, for your vintage pleasure, I thought you might get some inspiration from this dress from the 1940's. The print (which is practically modern again!) is very busy and makes it difficult to see the style lines, but notice how the sequins have been sewn to just a few spots. This could easy be duplicated on a fabric of your own choosing if you want a little sparkle on something.
http://www.gownsbylaura.com