I wanted to enter the county fair, but I wouldn't be in town when the items had to be picked up. Now that I have seen what WAS entered in the fair, I REALLY wish I could have submitted something. I don't think I'll do the state fair, 'cause I don't want to schlep all the way to Syracuse.
What I really want is to move back to Iowa and enter things in the state fair. In the meantime, I'll just have to watch the movie "State Fair".
ETA: The MN state fair will have published their rules, definitely in a brochure and possibly on a website, so you should see if you can find them. Your library may have them, also.