Arizona I believe. Interesting fob for sure.I think it's a pretty cool find! There are a few things that might help ID it.
1. Where in the country was it found?
2. Are there any markings on the back of it? (Could you post a picture of the back side?)
This sounds the most likely so far.I'm leaning towards I.C.S. standing for International Correspondence Schools, I have found a few fobs but not that one.