Crushing oil filters.
Trucks would bring barrels full of used oil filters. I would take them out of the barrel, put them into the crusher based on their size. Then once crushed, take them out of the crusher and throw them into a garbage bin.
Since they were used filters, you would get oil all over yourself. I had chest wader type things on but I would still have to come home and scrub my entire body with a nail brush to get all the oil out of my skin.
That lasted for a summer while I was in college.