Just Finished this today. I made a tension wrench and a pick that fits inside this hand drill I bought from Harbor Freight. The handle unscrews to store the drill bits, but I thought it'd work great to hold picks as well. I started with only one pick, but hope to make more/different designs.
I added the pocket clip, which was from a broken tire pressure gauge.



It works fairly well.
BTW, I copied the design from a pick I already had, using needle files also from Harbor Freight.
[Title edited by MBI for searchability.]