I like where this is going! The method I settled on to attach the shock box to the collar is a bit rivet heavy, but I do like the apparent bulk of it. The shock box itself is kind of a placeholder until I come up with a satisfying way to make it open/close/lock and where to place the status LEDs. I initially thought about doing a heavy padding on the inside, like on the classic leather cuffs, but I still have electrodes to add, so a bulky padding is probably a bad idea.
I’m also tempted to put the KDC logo directly on the shock box rather than in the back. but it might be a little too much “in your face”.