"Is it permissable for a Jew to donate sperm FOR MONEY? (We know that it is a source of income ('hakhnose') for some men!)" (source)

"They used to put it down on the table from which the gaboim [{in this case} manager of the affairs of a Hasidic rabbi] who would divide it into several alms boxes, as a sort of vehicle for the princely hakhnose [income]." (source)