This is a soprano flute with a fingering system similar to the penny-whistle. The tapered bore produces a mellow tone.
I had Shapeways make this model from "strong & flexible" material, and it worked perfectly right out of the box.
The software I wrote to design this is available as Python package "demakein": http://www.logarithmic.net/pfh/design
Once a month we hold our live video chat with the Shapeways community.
That moment is happening now.
Join us at shapeways.com/community/live