I got another of the Las Vegas Palm Restaurant gift chips at the chip auction in Las Vegas. TCR lists three more:

5 Lunch Chip, green(oversize)
100 Dinner Chip, black
25 Dinner Chip, black (oversize)

These are all Chipcos. I don't believe they are honored any more, but haven't checked at the Forum Shops.

I'm interested in buying the three missing ones, or even seeing a scan if you have one in your collection.