I am sure they have some value...but not sure what that would be.
Are you talking about the Super Big Pig Crackers from the 1994 PGI Convention in Amana, IA? I have 2 bricks of those. I saw one go for around $40.00 on an auction, but can't remember which one.
If they are the Super Big Pigs, where did you get them? Are you a PGI member?