To me it looks like a pen blank:biggrin: I am guessing there is a duck call design in there somewhere. Those that make them probably see it better than I. Would like to see the finished product. Interesting concept. Looks good.
What would look cool with all these watch part pens being made is combine old with new. Cap uses mechanical parts and bottom use electronic components
Digital meets mechanical:biggrin: Feel free to use this idea but i will expect Royaltys