Our farm coverage used to include an umbrella policy that covered farmers markets. They dropped that a couple of years ago.
Both the markets said we had to have liability insurance but neither asked for proof til this year.Here is a country wide site that covers this kind of stuff. Roughly $300 / year for any number of markets.
https://www.fliprogram.com/
I'm going to check out the home/auto option first, but may go with this or another company that is just Wisconsin. Just another expense. But when you think about it, if someone falls near my stand and gets hurt, I could lose the house and farm if not covered.
Carol