Secret Compartment Key Ring.
I used a 12 Gauge Gevelot Shotgun Shell with a paper casing and brass base.
Polished the bass and applied 4 coats of lacquer using my Dipping Method.
Removed the live primer by making it inert by wetting the gunpowder prior to pressing it out with a transfer punch, pressed in key ring holder and CA'd in SS tube for removable brass end cap. All these parts are from a Shotgun Shell Key Ring kit that I had laying around.
Will see next month how these will go over at up coming Gun Shows.