This is, by far, my strangest coin. Found when I was working at Subway, I changed this coin out for its unique quality. Doing a little research on these, I found that they were usually offered with a Made for TV offers. These were usually some special coin or paper money offer and they would use these to “sweeten the pot” as the saying goes.
After a little more research on the coin, I found that it is a chemistry trick that you can do to any penny. Basically, you start off by coating the penny with zinc and then burn it off. That gives it the golden shine.