Preparation tools: paper-cutting, pen, meat cleaver, scissors.

1. Prepare tools, as shown in the following figure:

2. Fold the paper-cut in half, as shown in the figure below:

3. Draw a butterfly shape, as shown below:

4. Use a meat cleaver to cut off the unnecessary parts, as shown in the figure below:

5. Cut off the rest, as shown in the figure below:

6. After cutting, the butterfly paper-cut is finished, as shown in the following figure: