You can choose health products, such as bird's nest, ginseng and other health products.
In terms of taste, you can choose some calligraphy and painting, classical Four Treasures of the Study, ceramic handicrafts and so on.
In terms of pleasure, you can choose tourist tickets, cultural and sports activities tickets, opera tickets and so on.
In terms of body and mind, you can choose books and CDs of Taiji Chuan. Other fitness books and CDs suitable for the elderly.
In terms of interests, you can choose fine chess, Go or elegant tea sets.
It's not bad to send a radio if it's popular now! I hope I can give you some inspiration.