I knew that would get your attention.   My local tech bod is very gracious with me and humours my ever wandering mind. I have a Shuker which I love dearly, but I have taken an irrational dislike to the machine heads on it. They do their job fine and dandy, but there is something about them I just do not like. I often look at my daughter's acoustic and wonder why I cannot have nice machine head buttons. Then I thought that spheres would be a very nice thing. Mark is cnc'ing some for me.