Sounds like the group could use a version of the "Uncle Jaque Memorial Pavillion";

Uncle Jaque's Memorial Pavillion; Open for Business

   It served it's purpose quite well during our encampment this weekend. We just had to evict a spider who had set up shop in the chute (fabricated from an inverted 5-gal. plastic bucket under the "bench" made from a discarded formica counter-top) so we wouldn't have to risk a bit butt (spider bites smart!).

I've got the plans around somewhere if anyone wants to build a replica.

Actually, I had intended to build a modular version with base, walls, and roof that could be transported seperately and assembled over a hastilly dug pit in someone's field or back yard. It could be done!

Glad a good time was had by all - hope to make the next one!