Cute paper-cut window pendants are made. Hanging them with strings is a very good decoration. If you can hang a bell under the window, it will be a creative wind chime~
Cut out four square boxes in the middle of a piece of cardboard and simply fold them down.
You can also paste patterned white paper on the other side of the window to resemble the view from the window.
You can also transform this small paper-cut pendant into a greeting card, friends, feel free to use it~