Why don't they strap Yorick onto a milking machine?
In A Boy and his Dog, Vic (Don Johnson) is captured by an underground society were all the men are infertile. Hilarious scene were he is strapped down and milked. The women line up to get a vial of his semen!
Good post-apocalypse movie: https://moviechat.org/tt0072730/A-Boy-and-His-Dog