Brazilian scientists have been using digital technology on the skulls of saints, so as to reconstruct their faces. They used their technique on a relatively well-attested relic of Mary Magdalene. This is what she may have looked like.
Details of the reconstructions after the jump. Go here for the Mary Magdalene project.
Image by Cicero Moraes (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons)