This afternoon, I have been experimenting with felting - maybe fulling. Not intentionally you understand but on account of forgetting I had a sweater in the drum of the washing machine before putting on a hot wash. Adding injury to insult I also washed several paper tissues with it as well. The Cardigan I bought in Austria at Christmas is now several sizes too small, rather hard and has little bits of papier mache worked into the fabric.
Ulf - this is an old-english technique called not paying attention when doing the laundry.