Mike --
Perhaps I should have said that this was more of a concept question.
BTW that does seem like a great price.
I am looking to come up with a way to make such a shaped comb as the router templates. Possibly for some other purpose and perhaps in some other size/dimension but the idea being that if two of them were put together offset they could nest in each others curves.
There has to be a way to do it. I figure at some point a collared or bearing guided router can go around a squared off shape perhaps pretty narrow and make a curve. For example if I made a comb of say 1/4" wide strips 3/4 apart and went around them with a 1/4" bit in a 1/2" collar or something like that.... Or perhaps rather than making a comb and tracing it, make whatever the opposite of a comb is.. series of stopped channels wide enough that tracing in and out of them would cut out the curved combs..... I know you can make curves from square corners, all you have to do is see what happens when you trace the inside of a square frame with a router to see that. So somehow one could make a very careful squared shape then follow it with a properly collared but and make a comb.
I am sure I am not explaining this correctly, but I am sure someone out there intimately understands the math/physics of this well enough to say something that starts like... "All you gotta do is..."