Michael Cronnolly was making polymer flutes in 1999 or earlier. I've don't think the material was ever specified though it looked to me like possibly a high density polyethylene. Here's a post from C&F dated 29 August 2001 (of course the links in it don't work any more).
I am thinking of purchasing a polymer flute so I was surfing this morning and came to M&E Flutes by Michael Cronnolly
I looked at all the info etc. and am impressed with the site and what he says about polymer and flutes.
BUT!!! I found two precious gems on his site. 1) The flute tutor-- 13 tunes played full and half speed (but no names) and 2) Streaming flute music by Michael, 27 tracks that are gorgeous, with Michael playing his polymer flute, with other instruments including whistle.
It was recorded at Milwaukee in 1999.
Some tracks are:Lament for the Dead of the North; Season of Mists, An Bonnan Bui; Yellow Tinker; An Grianan/Horse with a Heart; Lament for Frankie, plus Innisheer.
This is really persuading me to save my money for Michael's flute.
You will find the two links here:
http://homepage.tinet.ie/~mandeflutes/Contents.htmMark