To clarify, I meant cord locks, not cord lock ends. Here is an example of what I mean by using just a cord lock to improvise a break away lanyard:
You can see in the photo that the ends of the cord I am using are held together simply by the cord lock i.e. there is no knot or cord lock end beyond it so that with a firm tug the cord lock will break loose from the ends of the cord.
This looks like the older SureFire lanyards - at least the ones that came with my C3 and M6