"Do you really think that they're something anyone would collect?"

I have examples of 132 known molds. If I did not have the Hat mold, I would gladly pay $3 or more for it. My only chip on the Hat mold says Caesars Tahoe and is a counterfit.

The closest you will come to the Hat mold is the H&C mold. Paul-Son will no longer sell them to a non-gaming venue.

I have not seen the Hat molds come out of Asia in years.

Contact Mike Spinetti, he might be able to help you with something close to what you need. Send a scan with your request.
finnetti@aol.com

My advice is to contact http://pokerchips.com/
They will have nice clay injection molds with your name or initials reasonable.