from laughing purple goldfish: For months I have been collecting plastic bags and cutting them into strips. Supermarket bags, bread bags, fruit and vegetable bags. Collecting and cutting. Collecting and cutting. Then I spun two strands together, and plied those with another two strands I had spun together. I ended up with two balls of plastic yarn. Much less than I would have anticipated. A little disappointing, but an interesting experiment all the same.