I have several coca cola pin sets that i am trying to find a value for. 1980s Olympics 10 pin set, 1984 Olympics/ santa claus 12 pin set, 1986 Centennial Celebration Limited edition collectors 100 pin set, 1985 super bowl XIX 30 pin set, and 1986 super bowl XX 20 pin set. I have looked on ebay but prices are all over the place.