Preparation materials: colored paper and so on.

1, cut a square red cardboard with a side length of 10 cm, and fold both sides in half.

2. Then fold it in half at a time, and then open it all. Fold the lower edge in half, turn it over and fold it again, and then restore it. As shown in the figure.

3. Fold the lower two corners to the middle respectively. Open the top, draw two sides in the middle along the crease, and fold in half, as shown in the figure.

4. Fold a part of the two corners down, then fold the middle two corners outward respectively, and then fold a part of the upper two corners down.

5. Open from the middle, and fold the lower two corners in half along the crease.

6. Fold the handle in half twice in a row, and then fold it forward and backward along the crease.

7. Stick it on the top and stick it on the bottom with double-sided tape, and write a greeting on it.