Thanks, but I think the multiple colors would cause more confusion than they'd be worth. The critical thing is the chip thickness, though--I need to have them all to stack to a consistent height. Where do I find out more about the unicorn chip? I suppose I might have to resign myself to paying $100 for 300 reds and whites to solve my problem. But Lord, you can buy 500 brand new ones for a lot less than that! I know I sure don't care whether they have hats or animals on them if they match mine for diameter and thickness.