Since both Davids were at the Chip Chat auction, this info is probably already queued for the next volume. I'll mention it just in case, and to show off two oversize NCV's that might not be widely known.

The 20,000 chip from Tropiana is listed, but the denom color has a ?. It is blue, just like the chip. It seems to be the hightest denom. in this series of promo chips from the 90's, and probably the hightest denomination chip ever made for Tropicana, LV.

The Gold Coast Year of the Rat is not listed, unless it's one of those without a notation of the theme. It's black, and has a rat (kind of) on the inlay. Other side also says Chinese New Year. It's oversize, same as the Tropicana.