You can bring ethnic handicrafts as gifts, as well as Pu 'er tea, jade and silverware, but you should buy them in a trustworthy place. If you fly home, you'd better go to the flower market in Shangyi Street, Kunming to buy some flowers, which is definitely the best in the country!
In terms of money, you want luxury or frugality. If it is a self-help tour, it is recommended that everyone bring no less than 1500 yuan. The food in Yunnan is very cheap, especially the fruit is very good. Remember to bargain crazily when buying souvenirs.