A piece of 12*6cm colored paper, draw lines as shown in the picture.
Cut off 4 corners as shown.
Fold the two corners toward the middle, making a total of 8 folds.
Apply glue to the 4 blue corners as shown.
Adhere the two green ones as shown.
Turn the green over to the back and apply glue on the 4 corners.
Glue two red ones.
Turn the red color over to the back and apply glue on the 8 points as shown in the picture.
Glue two yellow ones.
Add cute expressions and it will flip infinitely.