At the end of the 2.5 hours, I gave the two young women some bracelets as a thank you gift. They didn't want to take them, but I smiled and left the bag on the counter, saying thank you all the while. I waved and walked out. About an hour later, I received a thank-you text from them as they got my number off the shipping labels.
For those who found this entry via a search engine on shipping from China to America, there are the shipping limitations:
NO electronics (cell phones, cameras, computers, MP3/MP4, batteries), no glass (including packaged tea sets), no medicines, no liquids, no cosmetics, no firearms, no swords/knives, no flammable items.
Costs: SURFACE MAIL (slowest boat): 85 yuan for the first kilogram; 20 yuan for each additional kilogram. The large boxes cost 12 yuan each and the shipping label cost 2.5 yuan. There was an 8 yuan fee for the shipping bag. Insurance and registration are extra. We expect our boxes to show up in 2-3 months. Many post offices will not allow you to pack your boxes at home, but if you explain ahead of time like we did, they will sell you the boxes and warn you not to seal them prior to arrival.