Chaz I looked for the design and couldn't find it, so I can't tell you much about the template.
Things like this are pretty easy to design, and once designed, Shapeways makes them easy to print. I design with the free version of Sketchup. I'd be glad to help you get started...or if you can describe what you need, it will take me about an hour before you could order it from Shapeways.
Chaz@cbqlvr01
It was so long ago, I don't remember. I think its an eased curve.
Chaz
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