Chris, I suggest that you contact the gift shop at the Trenton Museum. They did sell repos some time ago and still might have some.They were not expensive.
As to the blue-green stones, there were some produced but talking to some of the Irvine people they said that they thought that the red stone stock had run out during the War so they used what they could find for a very short time.
If a person on record has lost them Irvine will replaced them but I don't believe they will be engraved.
Mess and bar talk have claimed that the red eye ones mean that the plane went down in flames.
After a bunch of drinks anything makes sense.