Sorting recycling comes to mind. The manual labor version of it involves standing over a slow moving belt of stinky trash and picking out the valuable recyclables.

Seems like a Fanuc with a suction gripper and a hires web cam is all it might take to get a little "trashville" going. Give the housewives who collect the most alu while the kids are away at school day passes to local spas as prizes and you've got a win.