1. Fill with calligraphy or painting: write ancient poems and famous sayings with a brush, or draw antique patterns and flower-and-bird paintings with colored pens and watercolor pens to increase the artistic atmosphere of bookmarks.
2. Fill with paper materials: cut antique paper materials, such as rice paper and handmade paper, into appropriate shapes and stick them in the blank space of the bookmark to increase the layering and texture of the bookmark.
3. Fill it with decorations: use antique decorations, such as palace lanterns, ancient keys, tassels, ribbons, etc. , and string on the bookmark to increase the ancient rhyme of the bookmark.