I don't wear skirts usually, especially longer ones that go beyond the knee. I had this gathered cotton skirt that I thought would make a better dress. Below, I came up with a way to refashion a skirt into a trapeze style dress. You can even do this with a strapless dress to add extra coverage.
Use a collar, pattern, or tank you like for the top and cut. I decided to do a boat neck with a slight racerback. Their are many styles and fabrics you can choose from. Halter or collars from old shirts like the one on the left. Fabrics can be laces, embroidered handkerchiefs, macramé like the one above.