I started this soon after attending a demo of Michael Kehs at the Hartford AAW symposium. It has taken a back seat on the bench for a while, but finally completed. I did it for practice to see if I could do a "leaf piece". It was an experience and I learned a lot, but involves a LOT of sanding. Wish I'd picked a better piece of wood and hollowed it more carefully, but it was only practice.
Sugar Maple (bleached to get some ugly brown streaks out)
Kryon
6" H x 9"D
Thanks guys. Don there is no real mystery here. I turned the HF to about 3/8-1/2" thick to allow for the carving. I then laid out the fibonacci spirals (check out my article on how I do this for more http://breezyhillturning.com/resources/SpiralLayout.pdf) . This layout provided intersections where I centered a leaf to fit. The leaves were all patterns taken from actual leaves from my woods traced onto thin plastic which can be used over and over (the wood was from my woods as well). Once layer out. It was all carving. Many of the leaves have deep undercuts, which proved to be the more time consuming areas to detail and sand. I may do something similar in the future, but right now I have a bunch of other ideas and have a couple of my more math related pieces in the works.