What kind of souvenirs do tourists prefer to buy when traveling?

My first souvenir is this small Shoushan stone, which was given by the owner of the tea shop in the lobby of the hotel when I was on a business trip in Fuzhou more than ten years ago. On that business trip for more than ten days, I found that I didn't bring tea on the first night, so I went to the tea shop in the lobby of his hotel to sell tea and met the boss in Fujian. His Fuding white tea tastes good. I go to his place for tea and chat every night, and I bought a lot of tea sets from him when I left.