You can get copper sheets at any Hobby Lobby.

Marshall Dudley <[email protected]> wrote:Also I believe the soft copper pipe 
is pretty pure copper. Not the had kind, but
the kind that is easy to bend.

One should be able to buy a few feet of large diameter tubing (3/4" will produce
about a 2 3/8" wide sheet), cut it to length, and cut it lengthwise. Then open
it up to make a sheet out of it.

Marshall

Al Davis wrote:

> Electrical copper wire is 99.95% minimum purity. Cheap, too.
>
> Do a search for 99.95% copper and you'll get lots of references.
>
> Al Davis
>
> > I keep trying to think of something that's made out of pure copper and I'm
> > just not getting there.
>
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