Here's one I made earlier...
You'll like this:
Some 20 years ago I was experimenting with an arm, which I still have in my arm(oury) (groan, sorry) - was it really that long ago?
Anyway, I haven't released it because it is perfect. And I mean all but perfect. Well, at least it measures perfectly: Over the majority of its range, it has no detectable blemishes. Quite amazing.
It's a shame it sounds so odd! And I mean ODD. Totally non-viable commercially speaking.
Like I said: Measure at your peril.
Arthur