Yeah, I let that one slip by over the winter... too cold in the shed. As time permits this spring, I will finish it. I've found some good cylinder candidates at the Surplus Center. Just need to find some time to do it /forums/images/graemlins/confused.gif.
The curved fingers are from a 4' diameter, 4" wide x +1/2" thick steel ring I found in a local scrap(treasure) yard. Found two of them and some 1/4" wall 2" steel tubing for $20.00.