I understand that is is not that unusual to see these around Chicago at flea markets, as I understand many were handed out at sporting events. They must be kind of rare today, (in good condition) as I have been looking for sometime in Ohio and PA and have found none-outside of the display at SCR.
Next time you see them for 1$ Buy them all!. Then please sell them to me - Hell I will even let you make some money on em, Because I know I will...