Found in Pompeii: Wind chime decorated with a winged penis, spouting its own penis, with a penis for a tail.
What.
http://www.youtube.com/watch?feature=player_detailpage&v=dfc_mD-a1k8#t=1986
EDIT: If you keep watching, there is a similar statue a few minutes later, but with the addition of another penis growing out of its shoulder blades.
There’s also this thing I saw in Pompeii
The penis back then was a sign of welcoming and this on the ground pointed to someone’s house, which was an invitation.
They also have a “she-wolf” house, where men and women would have sex in certain rooms and then graffiti the even on the upper areas of the walls.