Min
In Egyptian mythology, Min (Menu, Amsu) was a form of Amon depicted holding a flail (thought to represent a thunderbolt in Egyptian art) and with an erect penis. His full name was often given as Menu-ka-mut-ef ("Min, Bull of his Mother"). Min was worshiped as the god of virility; lettuces were offered as sacrifice to him and then eaten in hopes of procuring manhood; and he was worshiped as the husband of the goddess Qetesh, goddess of love and femininity.
[Source: Shawn C. Knight, "Egyptian Mythology FAQ" ]