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

More info:  https://en.wikipedia.org/wiki/E_Clampus_Vitus