Thank you all for the responses here and via email. Many of the emails asked the same questions, so rather than responding individully, I'll address them here.
1. Since I'm not an expert on chips and am uncomfortable using the word "mint", I used "near mint" condition to describe the Atlantis chips. But they have no nicks and no dirt. The edges feel "sharp" like a new coin with no wear on them.
2. None of the chips are "Fun Nite" chips.
3. The Playboy $2.50 and $1.00 chips are both metal inlays. The Atlantis is solid plastic or clay with a recessed middle and carvings.
4. The Playboy $1 are in different conditions. None of them have nicks or chips in them but they are different shades of white. I'm not sure if it's dirt or they turned with age but I've had them for quite a while. I didn't know there was a demand for them and now I'm afraid to clean them.
Listening to all the responses, I think my best course of action is to get them scanned and put them on ebay individually. I will post here again to let everyone know they're on ebay (I don't have a scanner so I'm not sure when that'll be.) For all those that said they wished they had an attic like that - I wish I can have back the money it cost me to get these few chips.
Once again, thank you all for your help.