For trade-
Whitetail deer leg sinew. I do the processing myself. I have processed over 5,000 leg sinew in the past six years. That's a lot of sinew! I have also processed tons of backstrap sinew and the leg sinew is so much better. I would take the pepsi challenge against it any day. It's like silk. Each piece is from the rear leg. At minimum each tendon was 12 inches. I'm most interested in flint or chert and atlatl dart shafts.