Being that I am perfectly capable of doing it myself, I recently made myself a cresting jig from a sewing machine, like so many other DIY guys have. Then I found what I believe would be an even better apperatus. I found an old Sunbeam Mix Master. No' I haven't made a jig with it, YET, but it just looks like it would be the ultimate cresting jig for the do it yourselfer. You will be able to find plenty of Sunbeam Mix Masters on ***** for around twenty bucks+-. Post pictures for us if you make one. If you get REAL creative, you can even turn two shafts at a time, so you can share some time with the wife(?)
David