Beaver spikes version 2
I've replaced the 1/8 ferrule with a small piece of heat shrink tubing. It may not be as robust as the ferrule and allow the nail to come free of the snare. It will be easier to salvage the nail after a catch though. This one is built on 3/32 since it's a prototype and I'm low on 5/64.
I wasn't sure the best way to terminate the cable to the Adams lock. I tried to make it work using a single stop but couldn't get the right bends in the cable.