I'm thinking there screw eyes, but they are different shapes and are filled in around the eye. On the red one the lip has a scratch in the paint and it almost looks like copper lip? These looked to be dipped in paint head first starting with the top color and overlapping the next color. If you look close you can see a paint drop hagging off the lip. I was told that these came out of a box of 15 to 20 plugs about the same.
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