Take a square piece of pink cardboard.
Cut into two rectangles, one big and one small.
Fold the left and right sides of the big rectangle inward, and then fold it in half.
Cut out lanterns with scissors.
Stick double-sided adhesive tape on both sides of the small rectangle.
Adhere to the inward folding part of the large rectangle.
Take a piece of blue colored paper and cut it into two strips for decoration, so that the handmade lantern is finished.