: For a more permanent decoration, you can use 20x20 cm paper to fold a standing origami cross without using any cuts.
: Make a single vertical cut along the center of the folded paper. Forward (Unique (CRO) Remix)
: Take a rectangular piece of paper (like A4). Fold the top corner down diagonally to align with the opposite edge, forming a large triangle with a rectangular strip left at the bottom. : For a more permanent decoration, you can