"Ask for old poker chips"

I ask for chips or anything with a casino name on it. Then I say or any chips with any kind of writing.
Also don't give up. Two examples. I always pass this antique center and stop in. One man sold me a 5 dollar Playboy chip and never anything again but I always ask him. The dealer next door who never has a chip and I always ask pulled an old Golden Nugget out of his pocket last week and said he's been waiting for me to come around.
Keep at it. That's what makes this hobby fun for me. The hunt. Barry