The two in 2nd picture, 2nd column, 3rd & 4th ones are ones that may not have enough clear to be a popeye. Another view may discern more. Others are all popeyes. Nice bunch.
The major companies all made game marbles and many of the solid color game marbles do shows patterns like MK, Vitro, etc. The original one is probably an MK game (Chinese Checkers) marble.
Ron, that's great that you are involved with that marble group training for the Nationals. Kids involved with tangible things seems like it should be a priority for parents, teachers, and people in general. Thank you.