What you need:
1. Colored paper
1. Cut several squares out of colored paper.
2. Fold it in half.
3. And again fold it in half to form a square.
4. Unfold it.
5. Fold the corners to form the triangle as shown in the photo.
6. Fold in half and again form a triangle.
7. Fold the lower part up.
8. Inser the pieces one by one.
The crown is done!