I got a pair of lanyards with quick release originally meant for handphones. The pack consist of a long neck lanyard and a shorter one for the wrist. Got them for around US$1.07. Pretty nice!
Alternatively, you may light to get the SC1, and it comes with a lanyard system that fits the L4 as well. Hope this helps. /ubbthreads/images/graemlins/smile.gif