I have been busy engraving this last month, prototyping disks which I will be inlaying into the end caps of my flutes with rings and slides. Here is some of my work thus so far.
Casey
Lovely. I think the designs of end caps are often real artwork.
Some pretty elegant-looking stuff, there. Not that they don’t stand on their own, Casey, but do you think you’d ever get around to overlaying end-cap guilloche work with transparent colored enamels?
I always knew Spirographs were good for something. 
Casey, this is off topic, but I have to compliment you on the flute you made for a young lady. She is missing a finger, and the flute you made allows her to play. She really likes it. Thank you.
I’d love to know more if she’s OK with discussing it? And have, as many here know, a genuine interest in adapted instruments.
Enameling is planned.
Peter I think it would best be discussed in the abstract - if Casey would be willing.
I am but just briefly - I’m busy trying to get the last of the year’s orders out - some 20 flutes. For my small handed flutes especially with clients with specific hand issues, I have them send tracings of their hands. I also have them get a piece of 1" dowel or the equivalent and have them draw on imaginary hole positions for the 1st and 4th holes, and then have someone trace where the 2nd and 3rd fingers for each hand like to land. My flute design allows the flexibility to move the holes around someone, keeping #1 and 4 as the constants although those get moved down if a particularly narrow hand position is needed. Then the flute is cut to these parameters and evaluated by the client. If holes need to be moved here and there its no big deal but having done this for years, usually my 1st attempt is pretty spot on. Its the same principal as when I planned the key work for Matt Molloy’s Bb flute - except that I had the pleasurable experience of spending much of a day with him to do this which included a wonderful lunch down at Pike Place. What was most pleasurable was hearing him play that Bb in concert later that evening and in subsequent Chieftain concerts.
Casey
Very nice work there. I especially like the one at bottom right, which reminds me of engine-turning.
Very cool that you are making flutes that enable people with whatever difficulty to play.
Well done, indeed.
Casey, please keep us updated on the cap inlays. I am interested to see how some of them turn out on the flutes.
See https://forums.chiffandfipple.com/t/engine-turning-of-flute-bands/96501/1 for Casey’s earlier intro to this topic.
Best wishes.
Steve
Have you been working towards this ever since you chose crinoid emblem Casey? 
I had a quick glance earlier today. Again, engine-turning looks great…reminds me of the dashboard of certain 1930s cars.