I had a $100 Cactus Pete's chip in the paper weight form. I used a chop saw and measured as close as I could on one side, then repeated this severl times until I got it close, Then I put it on the bench grinder...ever so slowly. Long story short, I got it to about 95% of the acrylic off. After 3 trys at tables, the pit boss at a craps table said take it to the cash cage...THEY TOOK IT! and gave me a $100 bill. In retrospect, it might have been easier to go out and earn $100 some other way!