Try to see if you treat them like a felted wool fabric if they would work for wool appliqué. Take a square and put it in boiling hot water like you would to felt wool, once wool is felted it doesn't fray. If you look up patterns for felted wool, you will find lots of ideas. If after trying to felt a square and it doesn't work, it might be a candidate for a clothesline basket bowl. They look relly neat with questionable fabrics. I did a rayon blend and it turned out great.