I am throwing together a map for a class project. I would like to use icons that represent the material (i.e. little mayan pyramids for mayan cities, etc). I have not been able to find any mesoamerican mapping-related brushes via Google. I wonder if I am doing it wrong, or are there really no pre-columbian brush sets lying around?

Note: If I cannot find any, I will try to make some, but not in anything like a timely manner. Homework first, of course!