These parts are 3D printed with a material called Alumide, which is a hard plastic with metallic flakes embedded in it, which gives the end product a sort of metallic-stony look which I think matches well with Doug's PVC flute. A very modern accessory for a very modern traditional flute!
If you've got a Tipple flute and you'd like your own tuning ring and end cap, you can order them by clicking here. They're available in a variety of colored plastics and even metals such as brass, steel or silver.
Here's the original flute, note the beautiful, wood-like finish. The end of the head joint is open, with a cork pushed inside.
![Image](http://cokane.com/shapeways/flute01.jpg)
The flute plays at concert pitch (with a usual embouchure) with the tuning slide opened 7mm.
![Image](http://cokane.com/shapeways/flute02.jpg)
Here are the custom parts I designed.
![Image](http://cokane.com/shapeways/flute03.jpg)
The parts grip the flute in only 4 locations. They require no adhesive and slide snugly into place and won't fall out or rattle.
![Image](http://cokane.com/shapeways/flute04.jpg)
The head joint with the new parts fitted.
![Image](http://cokane.com/shapeways/flute05.jpg)
![Image](http://cokane.com/shapeways/flute06.jpg)
![Image](http://cokane.com/shapeways/flute08.jpg)
This material has a very pleasant metallic/stone appearance, which I think complements the finish on the Tipple flute.
![Image](http://cokane.com/shapeways/flute09.jpg)
![Image](http://cokane.com/shapeways/flute10.jpg)
Thanks to Doug for providing me with very accurate measurements of his flutes so that I could make these accessories.