That could be a lot of fun! I'm not very far at all from Garner so that would be really convenient for me.
I've planted my tomato seed fairly early this year, so they may be too far along by that time. But there are sure to be at least a few leftovers, and probably some peppers and herbs. Since I usually end up with a few that need homes, this could be a great way to get them to people who would really appreciate them!
Let's see if you get any more response and, if so, go from there. Your willingness to host it would be great! Then everyone could bring a little something, like something to munch on, a couple of drinks or a cooler of ice.
Some of us that are closer could bring a table or two, maybe one of those screen tents, if one of us has one. (I think my parents do, but I'll have to check) That way we could do it without a huge monetary investment for you.
The Pot Luck Plant Swap, if you will.