E Clampus Vitus
A friend of a friend gave me a garbage bag full of 2500 slides. Among them were a bunch of photos of an absurdist fraternal order, E Clampus Vitus. They have silly initiation rituals. These slides were from different camping get-togethers over a few decades.
When I posted them on RageBook, a friend tagged a friend of hers, who is in this organization.
Here are the photos: https://www.espressobuzz.net/Scans/ECV