2. Fold one of the oblique angles into a right angle, turn to the other side, and fold the oblique angle into a right angle.
3. Expand into a new isosceles right triangle.
4. Four oblique angles are folded at right angles to form a square.
5. Four right angles are folded in half to form a hexagon.
6. Fold a small corner at the right angle of the hexagon, making a total of four small corners.
7. Then put four small corners in the hole.
8. A hexagon has a small hole at a right angle. At this time, as long as you blow gently, the small lantern will be ready.