First things first, Boo Radley is a she, not a he, so her name is now Scout. That'll show me about trying to sex a kitten when they're so young.
And I hit the motherlode at the music store. I went in for a dozen 35 cent picks for the Robert Johnson piece and came out with 10 assorted tuning keys and 3 ....ummmm......decorative metal things with the keys still attached, whatever those are called. The guy I was dealing with was VERY interested in what I was doing with broken guitar pieces and took a lot of time going through his boxes of repair parts looking for other stuff I might be able to use. He also had some good ideas of how to use pieces of a guitar and told me which parts of it were veneer and which weren't. I love the look of the keys and the key sets (for lack of a better name for it) and I think they'll definitely find a home on some of my work. Big thanks to Stephen (of Kokojazzman fame) for suggesting the keys.