Adjustment Mechanism

With the stand almost done, I have started thinking more about the adjustment mechanism.  For the tightening screw, I will need some dowel, maple for durability.
http://www.leevalley.com/US/wood/page.aspx?p=32721&cat=1,250,43217,32721

For the overall shape of the pegs, they will be modeled after tuning pegs, which is not my idea, I saw it done somewhere, but I cannot remember where.  I think that I will top the maple screw with a darker wood, possibly macassar ebony, or burmese blackwood, both of which I have on hand.