Hi Peter:
I make low D whistles. I used to have Pavee (Traveller) friends in Ireland who used to make them out of any old right sized pipe, so one day, when about to throw out an old mop handle, I said, Hmmm low D whistle, and the rest is spliters of tin and history. I now make them out of copper pipe with plastic plugs rather than wood, and so I expect they will last for a few thousand years, and can be used for plumbing if a pipe breaks. They also keep you safe late at night on the subway. Recently Paddy Keenan said, in concert, that he used to make them out of TV roof antenas. He said he'd get less than a quid for em and they are now selling for over a hundred pounds. He says he should have forgoten the pipes and stuck to making low d whistles.
Get out the hack saws guys but stay off the nieghbor's roofs!
Larry
PS come hear Sorcha DOrcha July 7 and 31 at the New Age Cabaret at 23 Saint Marks Place NYC - and I will pull out the owld low D