National Day is a festival of national jubilation, especially for the elderly, who have deep feelings for this festival. After all, they have also experienced that period of time. Giving them gifts is also a kind of respect. Here are a few suggestions for you:
First, give them some nostalgic gifts, such as the former chairman's badge, or the teacups and mugs used in the old days. As a National Day gift, I believe they will have many memories.
Second, give them festive gifts, such as a pot of good flowers, which represents the festive atmosphere, or a calligraphy, "The country is peaceful and the family is safe". I believe the elderly will like it very much.
Third, give them a creative gift, such as making a real doll, or a family portrait, with parents and grandparents, and it can be made a little nostalgic. Everyone wears the old green military uniforms, which can also be regarded as a gift for National Day. The elderly will definitely like it.