I. Methodology 1

1. First, everyone prepares a double-sided color origami that they like, cuts it in half, and folds the selected rectangular color origami in half.

2. Then, fold the folded paper pair into a crease, and fold the lower side up to the position of the central crease.

3. Secondly, rotate the origami by 180 degrees, fold the other side to the position of the central crease, fold the crease and unfold it.

4. Turn the origami upside down and turn the lower right corner of the origami into a small triangle.

5. Next, fold the origami on the right with the width of the small triangle.

6. Fold the crease and open the folded paper.

7. Then, fold the origami again.

8. Turn the origami upside down and fold it on the left and right sides of a triangle.

9. Fold the sharp corners of the triangle outward appropriately.

10, then turn the origami over and open it on the right. Also, open it on the other side.

1 1. Fold down the sharp corners of the unfolded origami.

12. Turn the left and right sides to the middle position in turn.

13. Finally, flip the origami and a beautiful convenient label will be made.

Second, the second method

1. Fold the square into 4 equal parts and 1 equal parts into the center line.

2. Turn the origami upside down, fold the upper right corner and bottom edge into isosceles right triangle creases, compact the creases, and then open the creases.

3. Fold the right angle at the top parallel to the bottom to form an isosceles right triangle, which forms 1 intersection with the front crease.

4. Fold the crease line to the center line.

5. The fourth step is to fold along the crease.

6. Mark the vertical line of the isosceles right triangle displayed at the top of the origami with a ruler, and divide it into three parts, and take these three parts as the zigzag dividing line.

7. Open the origami and return to the shape of the first step. You will see two square creases in the middle, and we will fold along the big square crease outside.

8. Press the center of the square, and then close the diagonal of the square to the middle.

9. Turn the origami upside down.

10. Fold the right side of the paper to the left.

1 1. Fold the bottom edge of the right origami parallel to the longitudinal center line, press the crease, and then pull the origami back to the state of the tenth step.

12. Fold the bottom edge of origami in parallel upward, and pay attention to the position of parallel folding.

13. In the folding step 12, the origami on the right side is also folded upward, and the crossing part is pressed down with the thumb, so that a small isosceles right triangle is formed here.

14. Then flatten the right origami part upwards.

15, then fold the origami from left to right and flatten it.

16. Repeat the folding method of the 15th origami area for the leftmost origami area.

17. Fold the vertical midline of the lower right corner of the left and the lower left corner in parallel.

After the steps of 18 and 17, turn the origami to the back, fold the four right angles at the top into a small triangle in the opposite direction, and then fold the right angles formed at the top down into a small triangle, which is the top of the heart. The steps here are the same as the ordinary heart-shaped folding method. The isosceles right triangle protruding from the lower part of origami is where the bookmark is inserted.

19, after folding 18, turn the origami to the front, and the small area above the heart is a little love.

20. The inward folding position of the crease line is just parallel to the center line.

2 1, on the left is the same folding method.

22. Then we decorate origami in this small area of love and fold the four right angles at the top in the opposite direction. This folding method is the same as the big love heart folding method.

23. Fold back the two right angles formed by the little love in step 22 into a small triangle to decorate the top edge of the little love. Such a double love bookmark origami is completed.