Probably the least important part of reed making is reed thread. This is the most visual and artistic aspect of the process but serves little purpose. There are a few shapes that require wrapping to seal properly (Hertzberg) but outside of that, good shaping and Duco cement will suffice. Threads are available at double reed supply stores. I have been looking for other sources of reed thread (for cheaper) but have come up short. I know people who prefer cotton thread, and for those people “Aunt Lydia’s” thread is availabe at many stores. I don’t personally like how Duco cement works with cotton. Nylon size FF thread or 138 can be found at many online retailers. I have been using OMEGA thread. Its a nice nylon thread but its thicker than FF so maybe it isn’t usable for oboe/english horn. It comes in 90 different colors and its very cheap. This is great for bassoon and contra reeds and it doesn’t take as much thread to create a turban. I have a friend who buys all of her thread off of the thread exchange. They sell larger spools and in many colors. And of course all of the double reed supply stores have thread. Most of my thread is from RDG Forrests and Charles