Playing with Inkscape and rotating an ellipse I came up with this:
Nice! Love those accidental “Eureka” moments!
That’s pretty damned cool.
A Fine wandering though a program results in a highly re-purposeful design. Many from one.
This design would also make a nifty guitar pick. I’m not sure what material to use for that, though. Acrylic, I think, might prove to be to brittle and inflexible.
Natural turtle shell I think if available from a legal source. I had some manufacturing scrap back in 1975ish that was probably 20 years old then from an estate of an old jeweler that you might have managed that, but I don’t know if you can even posses it now… The plastic that emulates it sold these days, would be interesting to look at but I would have no idea of the chemistry of that plastic.