Need materials and tools: cardboard, scissors, double-sided tape.
1. Cut three rectangular pieces of paper 4 cm wide.
2. Fold it twice in succession.
3. Then open it and fold it back and forth.
4. Take a piece of colored cardboard and cut it into strips with a side width of 4CM.
5. Fold the two ends of the colored cardboard in half and stick double-sided tape in the middle.
6. Press the folded white paper in the middle by hand.
7. Stick the separated places with double-sided tape, and then fold the two sides of the colored cardboard inward to the opposite side.
8. Write a text picture on the cover.