This is a classy website, full of classy jokes. (Classics jokes? Never mind.)
Penises (particularly winged) where a popular good luck symbol in the ancient world. In the tintinabulum (a kind of wind charm), they’re doubly combined with the power of bells to ward off evil spirits.
Bronze phallic wind chime, 1st century AD, Rome (British Museum): http://www.britishmuseum.org/explore/highlights/highlight_objects/gr/b/bronze_phallic_wind_chime.aspx