I know that some casinos issue these special chips. ie 07-07-07, 08-08-08 and I even own a few.
But has any casino ever released progressive date chips? ie 05-06-07, 06-07-08
The reason I ask is that 10-11-12 will be my 50th birthday (if I make it to 2012) and thought it would be cool to have a casino chip of that nature if they are made.