Chinese history - A great tutorial for scratch your own Ming vases. scratch away the paint to reveal blue underneath. You could also do black and clay colors for Greek pottery or do different cultures such as Asia, Ancient Greece, etc.
Persian Pottery Fayence (tin-glazed) plates and wall wainscot borders. "Both the invariably flat treatment of the ornament and the prevalence of the natural imitation of flowers constitute the characteristic style of Persian decoration.