I'm told you folks know just about all there is to know about poker chips. I've only spent a few minutes reading and I can see I'm completely over my head here, but perhaps some kind soul will deign to assist me. I was given a set of what you would probably call "novelty" chips about 22 years ago. These are nice clay chips, no decoration or seal or anything in the middle of the face, with a series of what look to be little top hats in the border--no cane. The chips seem to be normal (39mm?) diameter, but are almost exactly 1/8" thick, so that 28 of them will fit into a standard chip tray that would normally hold 25 casino-type chips--you can almost put in another (29th).

My problem is that I only have about 400 of these chips and it's just not enough for a decent poker game. Mixing them with other chips is a pain because you can no longer get an accurate count by stacking them. I would really like to find a few hundred more of these.

Does anyone know who might have made them? Or--direclty to the point (finally)--how I can buy a few hundered more? You're the experts. Any advice?
Thanks,
George McGuan