okay I have been thinking about this for a couple of days now.
The rubber bobber stops you get that are on little tabs that you slide the line in and slip the bobber stop on to. i have seen this idea at some tackle shops. that a clear soda pop bottle and cut it in to 1/2'' long strips 1/8'' wide. drill three holes and BAM you have a stopper.
thread the line through the three holes to bind it. I believe that this will work with weights more than bobbers.
I was wondering if anybody has tried anything like this.