I propose an orgy, maybe a multi-day event. We get a consensus of who might be willing to come then pick a central location. If we could make arrangements with a nudist colony that would be great. I'm thinking a large grassy area, coolers full of beer, barbecue grills, maybe music, people that want to fucking on the grass or blankets, other people sitting around in lawn chairs talking (and watching).
If there's any interest I'll set up an email account to try to coordinate it, maybe a simple web page. It might be worth charging some admission fee if we need to rent space or want to provide refreshments, etc. just so there's a budget to work from. I have no idea how you'd get a permit for such a thing, that's why I proposed a nudist colony. A nude beach might an an alternative.