The website for "Hands off the People of Iran - Ireland" (HOPI - Ireland) was one that we created accidentally. The HOPI folks needed someone based in Dublin to provide some Drupal tutorials/workshops and we offered to answer any questions they had, though couldn't get to Dublin at the time. Three hours later, we had re-organised the whole website and set about building a whole new look for it as well, based on the colours of the Iranian flag.
We're quite happy with the outcome; the HOPI folks certainly are. Drupal to the rescue!