gistfile1.py

class MyRouter(object):
    def db_for_read(self, model, **hints):
        if model._meta.object_name == 'SpecialModel':
            return 'special'
        return False

    def db_for_write(self, model, **hints):
        return self.db_for_read(model, **hints)

    def allow_syncdb(self, db, model):
        if model._meta.app_label in ['south']:
            return True

        if db == 'special':
            return model._meta.object_name == 'SpecialModel'

        return False