Thanks all. The piece of metal folded like wrapping paper sounds like the ticket to me, but where does one get pieces of metal like this?? I can't seem to find any...ideas??

RWG--I don't necessarily have plans, but I have an article with extensive photos and direction written by Mike Orlen--I'm pretty sure I still have it digitally. If it's helpful for you I should be able to send it to you if you shoot me an email address.
Dave