If there are any student still looking for part-time work, Rebecca Titus (MSU Hort grad and second generation farmer) could still use some farm labor. Her farm is close to campus - in Leslie, MI.
Titus farms grows vegetables, eggs, and some fruits for a large CSA and farm markets. They use organic practices, but are not certified. You can see more about their farm here: http://www.titusfarms.com/