Here is a link to the ChipGuide mold guide. More than 300 chip molds and edge patterns listed;
http://chipguide.themogh.org/cg_mold_guide.php

Of course, there is also Robert Eisenstadt's chip mold project pages, which you are probably already aware of;
http://www.antiquegamblingchips.com/molddesignindex_site.htm

This has not been updated, of course, since Robert passed away about four years ago.

I also collect chip molds, and sometimes get a trader when I come across an unusual one. Maybe we can trade chips at the next Casinorama or June Convention. I had kind of given up on keeping up with all the new Chinese plastic and ceramic ones.