If it's metal and it's in Marv's book, it's a "Strike" (silver strike).
If it's metal and it's not in Marv's book, it's a "Token".

That will catch 99% of the tokens. There are a couple of clay chips that are marked "token" but they will not be likely to cause any confusion.

That said, I have little hope that the new categories will really aid in our search for casino stuff on eBay. If you're looking for the odd bargain, you have to catch those that have been misdescribed and put in the wrong category... which means you're going to have to look at all the casino categories anyway. Several really good old Las Vegas chips were listed as keychains!