You can make window grilles with the word "Fu" as follows:
1. First, prepare a square piece of colored paper, scissors, and pencils for backup.
2. First fold the colored paper diagonally in half.
3. Then fold the left and right corners in half.
4. Continue to fold it in half again, and then turn the colored paper back to the right.
5. Use a pencil to draw on the colored paper the area to be cut first, then draw the pattern of clouds we want to cut on the outside, and then cut it out with scissors.
6. Draw a moiré pattern below, and then cut it out with scissors. Then cut a gap in the colored paper.
7. Then open the colored paper and draw the word "福" to be cut on the middle square part of the colored paper. If you are a part-time veteran, you can cut it directly without drawing a pattern.
8. After the word "福" is cut out, it will look like the following. The picture below is the rendering after it is pasted on the door.