Several things went through my mind, such as strips of buffalo ribs and such (since I had already cut some of these a year or so ago), but nothing really seemed appropriate. Then towards the end of the first cup of coffee I remembered something....
....so after I got dressed, I went out and dug through the snow in a pile of odds and ends of various sticks and logs. We had grown this stuff in the house and it had gotten about 25 feet tall and an inch and a half or so in diameter and then a couple of years ago it started to die. So we cut it all down and saved the fatter stems. That's what I was looking for in the snow.
I figured that if it could be used for flooring, cutting boards, and other things, It certainly should be useable for guitar bindings.......and it would be appropriate, too.
So I found one of the nicer pieces, brought it in the shop, cut off a 3 foot long piece, and ripped it in half on the table saw. Then I ripped one of the halves into 4 strips
So here is what I had to start with

Yah, bamboo. Who woulda thunk it

A closer look at the strips

After a few trips through the thickness sander, it looked like this

I cleaned up and squared the edges with a block plane and got it down to just a bit oversize for bindings

trued up the edges on a sanding board.
This is still a tad thicker than it needs to be and there are a few slight kinks in some of the pieces, but it is very flexible and should be real easy to bend. I should be able to change the color a bit if I don't like what it is now. Need to see if I want to add side purflings, but I am thinking maybe not. I will probably use a very narrow strip of the spruce bark and a b/w veneer line for top purfling.
So, that's where I am at.
G