I would like to admit that I've never lost a strand of beads while beading but thats is in no way true. I kept meaning to get a stop or end for beads while at the store but always seemed to forget. I got into my boyfriend's springs and there they were. A spring with loops on the end. I figured why not make my own.
Plastic Dip, Sugru, or Clay
**You can get the springs at the hardware store. We happened to have a box that contained a bunch of different sizes.