There's a museum reproduction at the Occoneechee State Park museum of a necklace with a shell with this design worked into it:
This is the design that was found at Gaston [correction Hillsborough] , is attritubed to the Occoneechee, and therefore, perhaps the closest piece of artwork to the ancestry we're trying to honor. I'll try to get a photo of it on the shell. It really looks very nice.
I was contacted today by a shell jewelry maker. I've asked him what kind of price he could give us for a quanity of them.