...In most cases I don't think there ever was a brothel by some of those names.

Many of them might have existed once, but certainly not with those logos, and they do not exist now.

Would you consider this a fantasy chip? When all one would have to do is buy some blank chips and put stickers on them. I say no.

That is how they are made. I consider them junk, but they probably be classified as "Advertising" since they were never intended for gambling even in a home game (which the more reasonably priced "fantasy" chips could be).