I read a Las Vegas message board daily,like this one,Whenever someone over there posts that during their trip they kept some chips as souvenirs or are planning to,I direct them to the club and mention the yearly Las Vegas convention,then I have to explain that the chipboard is the message board to read,so another link.
I do what I can and also bring it up to dealers and bartenders who live and work in Las Vegas who have no idea of the convention.
I'm hoping at the very least someone I recommended at least reads this board but you can lead a horse to water...and you know the rest.