Two ideas, maybe they have been attempted and failed or whatever but here they are:

1/ Has anyone attempted using an eBay listing to attract new members...

SUPPORT CHIP COLLECTING - JOIN THE CCGTCC TODAY

2/ I'm tired of sifting through aluminum chip cases and poker chip sets to track down a chip...
I think we should sign a petition for fair categories on eBay and present it on CCGTCC letterhead.

Food for thought.