I did this last week--wet felted wool with bubble wrap and a pool noodle. I used thin layers from a spinning bell from http://thesheepshedstudio.com to get the wool in a thin sheet, and then accented it with some little pieces of roving, covered it over with a layer of nylon tulle, wet it with dish detergent and water and crawled around on my kitchen floor to get it started felting. Then I rolled it up with the pool noodle in the middle and the bubble wrap on the outside (took off the tulle) and rolled it around with my feet and hit it with the other piece of pool noodle until I was sore and stopped. LOL