Skirt made from recycled knit t-shirt fabric. Creator says, "It is easy, first you make a simple short skirt, it can be a simple tube. Then you cut some t-shirts strips and you gathered them. Beginning by the bottom, sew the gathered strips on the skirt. Play with the different shades and with the different lengths of the strips. At the top, finish it with a simple strip and decorate with a bow."
1 1/2 yards of lightweight, white cotton (more or less depending on your size), 1 1/2 yards of black lace, few yards of 2 inch elastic, and an hour of your time. No elastic casing involved.