I'm hesitant to give up the focus on casino chips, but if I were to play with it… I could see:

International Gaming Collectibles Association IGCA

Gaming Collectibles Association GCA

International Gaming Collectibles Society IGCS

Casino Collectibles Association CCA

Casino Collectibles Society CCS

Society of Gaming Collectors SGC

Association of Gaming Preservation AGP

Society of Gaming Preservation SGP

Also… call the convention (((CHIP-CON)))