In 2004, four-year-old Jim Zellmer's life was changed forever when he was diagnosed with Type I diabetes. So his family did something about it. His grandparents owned a farm in Iowa, and Jim himself came up with the idea—what if the Zellmers grew pumpkins and sold them to support their cause? They raised more than $6,000 for diabetes research in their first year, and their harvest festival has grown every year since, featuring everything from food tastings to live music, carriage rides, and a petting zoo.