G'day Jack Halyard,

Have you decided what lengths and bores of PVC tubing you need?

I have a fair bit in the workshed ... mostly offcuts from making plastic (generally prototype) low whistles - experimenting to see how much I can fiddle with the finger-spacing.

I'm afraid none of it looks like the "PVC Schedule 40 pipe" that Brucie mentions above ... but I can certainly chop off a few bits of standard bore tube to experiment with.

Bob Bolton