Commemoratives as follows -- all in good shape:

8th National Convention - Lakeland Florida -- 1977, Amber and a cool carbon bubble -- $20

12 National Convention -- Sacramento, California - 1981, emerald green -- $15

13th National Convention -- Cedar Rapids, Iowa -- 1982, white milk glass -- $10

19th National Convention - Houston, Texas -- 1988, dark teal blue -- $15

42nd National Convention -- San Jose, California -- 2011, Pacific surf -- $30

47th National Convention -- Muncie, Indiana -- 2016, electric blue -- $25

Or take the set of six for $100