This is a $4 thrift shop find that I modified for a show our troupe does every fall. The original beaded cocktail dress at left, and the finished dance dress, at right. I added some sequinned sheer black fabric as a large ruffle on the hem. I also opened the underarm seam so I could lift my arms, and put in a sheer black gusset. Below, a close-up of the sequinned applique I made and added to the front of the dress. You can just see part of it about knee level.