the Lucite (or plexi-glass) sheets that are pre-holed for chips and allows you to periodically remove and replace chips. The sheets are in the shape of the four card suits, or other designs.

I believe you are referring to chips being mounted inside Lucite, like a paper weight. That process involves pouring hot, liquified Lucite around a chip. That process makes removal of clay-composition chips impossible without damaging the chip.

Jim