One of the conservation projects of the Good Ole Boys Bass Club, is our fish line recycling tubes that we have at 5 different locations.  Over a one year time period we recovered enough fish line to loosely fill a 5 gal. pail.  The fish line is then sent to Berkley (a fish line manufactuing company) where the fish line is turned to plastic fish habitats.

http://www.berkley-fishing.com/Berkley-recycling.html