I have travelled throughout China for 26 years. There are thousands of things one could collect in China but of all things, I found that I admired their hand chiseled Stone Tea Pots. Very rare now as a special stone must be used so they do not crack or break while being chiseled. Some often takes months to make. They are expensive because of the detail required to make them and is fast becoming a lost art. The special stone was quarried south of Nanjing where there use to be a school to learn how to make what I believe is ART. During my travels in the last 10 years I have not found any again and the ones I have purchased were from the artists I found at art fairs. Perhaps you may find some art treasures as well during your visits to China.