Other easy items:
-Cheese plate or snack pack (probably some pretty great pickles can be acquired at the farmer's market!)
- hi sucrose corn syrup square (aka rice crispy treats. could be made gluten free!)
- raw bio-organic carob-ish treat (I'd make this a good vegan treat) and the various other candies
- Best Bean Dip
- Cheezy Sauce (it's Wisconsin, ok?)

Probably too complicated:
- Snow cones? Unless a local has a snow cone machine for some reason. These seem to be rentable but that's probably expensive and complicated.