Mike Marlow wrote:

Needless to say, I didn't buy the mag at that time and now I can't
remember which one I saw it in. If anyone recalls seeing this project,
I would appreciate knowing what mag/issue it was found in.

I don't know the mag, but I'd gather you could use an existing disc as
a template, drill the holes, stick the dowels in and have yourself a
fairly workable approximation.

JP