Last winter I forgot to wash my felted scarf (made in 2007!) with a wool programme in the washing machine. Grmpf! I didn't want to discard it, because I liked it very much. So I decided to cut it up and felt it to a brown cotton cushion cover I already had. For extra sturdiness I handstitched around the borders. I also added some extra felt circles to cover some of the silk underlining of the scarf.
This photo is made just after making the scarf. It hangs a bit limp because it's still wet.