The rock candy bird's nest you choose will do.
I suggest. Just after the Spring Festival, send some fresh food from your place, even mountain products.
As long as it is fresh (good quality, which he doesn't have there).
In fact, it doesn't matter whether something is expensive or not. It's just a celebration.
The first week of graduate students' returning to school is the time to taste snacks, alcohol and tobacco from all over the country.
Send some special products, the famous ones in the country are the best, and the quality is good if they are not famous. Hmm. How interesting
I wish you success!