Starting a meetup group where locals can exchange produce

Hello,
I am a student at Maine Maritime Academy and I am taking a sustainable design class. In this class I need to write a proposal on a project that will promote sustainability in my community. What I want to propose is a meet up where local people that have gardens can meet up and exchange their produce with their neighbors. I want to know if there are any other projects like that out there and if possible how they set it up.

hi Langston and welcome!
Sounds like an interesting project...I hope someone here can help.