I tested my bone folder tools, and the 6-inch model was much too short, but the 8-inch one worked if you were careful. It would be fine if you added a 3-inch handle at the end.
I also came up with a way to make the sword-rest peg useful: put cheap spools of thread on it, to raise it to a useful height.
(braid is Shigeuchi 1, Tada #8)