I don't have a clue what this is...

Probably not even a coin.  It is really thin.  Obviously coated as there are areas of corrosion. and it is stamped so that the face and stars are actually a relief.  This is a picture actually of the back... (front looks the same just inverse.

Probably some sort of junk, but figured I'd try to find out for sure.

Might be a hammered.