What the frig? Cool concept but hard to figure out how it was made. I can think of a lot of ways to make similar jigs but that one is confusing.
If you want, I can experiment with different ideas for ya.
I’ve always thought about something similar to that like the little LED lights and tennis shoes that you walk a little and they will glow I don’t know if it would be possible to get them that small to tie on 1/16 ounce jig.