This was a fun, but frustrating, project. Along with the persimmon stems, I used a bunch of seeds that I had collected and drilled when I was in high school and threaded them with a thin needle. The problem was, any time the string got the least tangled, it wound around the crenellations of the stems, making it impossible to disentangle! Twice I had to cut the thread and start over until I set up a system to prevent tangling. The result is gratifying but fragile.