How to use playing cards as storage boxes?

Playing cards as a storage box tutorial is as follows:

1, put two cards in a crossed position, fold both sides in half, then insert and fix them to form a square piece of paper. Make eight cards in the same way and fold a playing card in half.

2. Insert one side of a square piece of paper in the same way, enclose eight square pieces of paper into an octagon, and fix the joint with adhesive tape.

3. Fold the head of a card down a little, and do the same with eight faces and eight tails. Place the folded side around the shortlisted octagon and fix it with adhesive tape. Select the card of jqk, fold it inward along the inner frame of the racket, and put the two ends of the card into the two ends of the square paper. Pinch it in by hand, arrange the shapes, take out four cards in the same way, fold them in half, cut them open, fold them into eight identical sharp corners and insert them around the box.