Skirt guards are fairly common in Europe, but you don't see them that often here in the States. As the name implies, a skirt guard helps keep a long skirt (or coat) from getting caught up in the spokes or brushed against a dirty rear wheel.
This one is made using t-shirt knit fabric cut into strips that and woven over the wheel.
Get the full tutorial on Hideous! Dreadful! Stinky!