I used some vintage curtain-pieces, old lace and parts of antique bed-clothing. A rubber band at the waist, a button on the inside and a braid on the front for closure- Ready. (Ok, first I had to dye it all….) It won´t take some time, but it looks nice and you can wear it over skirts, trousers, leggins or a swimsuit in summer.
You can use many kinds of fabric and lace (but it works better, if the material is non-stretchable) Just follow your own taste and possibilitys.