Well, at least you folks are more appreciative than those at the Boise session last night. 
Thin walled works better because the reed lips will move more easily. The reed part is actually the same straw as the rest of the chanter. the yellow part on top is another straw used as a mouthpiece which covers the reed. You don’t need this part but it made the tuning more stable, as otherwise your mouth varies the pressure on the straw, changing the pitch.
So - take a thin straw (got them from my cafeteria at work) and cut the top - hmm how to explain this. You want two flaps, for the reed. Cut the top kind of like a triangle, but not quite - I found that leaving the top edge straight (rather than the point of a triangle) worked better. If you’ve ever seen the reed of a chanter you know what I’m talking about.
Once you have that, you can make it make a ‘tone’. compress the straw with your mouth, somewhat past the base of the reed. You’ll have to experiment, and it takes a LOT of air.
So now you have some semblance of a base note. I guesstimated at this point and cut six holes, using a D as a rough guide for the hole spacing, and making two triangular cuts for each hole, resulting in a diamond shape. I ended up having to tape a couple of the holes partially to tune them. The pitch will also depend on how much air you use - and it seemed to be in a different tune every time I picked it up to play it (kind of like a regular chanter, actually).
Now I had a bunch of toneholes. I found that when I used more air for the higher notes, I ended up pressing harder on the reed and it was impossible to keep a steady pitch. So I made the yellow “mouthpiece” section out of another straw (Fred Meyer brand, I believe). But when I put the one over the other, I had no way to compress the reed, and the air was just blowing through a tube.
A couple of well placed lumps of tape took care of that problem, although it wa a job getting the mouthpiece over the reeds once all that tape was in there. I tried to make a bridle (the little metal bit that goes over reeds in chanters) but didn’t have anything handy that would fit the bill.
Still takes a lot of air to ‘play’, and I don’t have a second octave. I never made the ‘mexican food’ connection myself but that was the IMMEDIATE reaction at the Boise session, so I’d say you guys are spot on, hehe.
I should start a gallery of “Merrily Kiss the Quaker” played on strange and unusal instruments, now I have two](http://www.rit.edu/~eeg6662/storage/Melody_Kiss_the_Quaker.mp3%22%3Etwo) clips of that tune. Unfortunately that means whenever it comes up in session I start cracking up…
[ This Message was edited by: avanutria on 2002-09-29 14:20 ]