Take a rectangular sheet of paper
Fold it in half lengthwise
Unfold it
Fold both long edges toward the center crease
Fold the paper in half along the center crease
Fold one end diagonally to form the blade tip
Flatten the diagonal fold firmly
Fold the remaining length tightly to shape the blade
Make a small separate paper strip for the handle
Roll or fold the strip into a tube
Insert the blade end into the handle
Secure the handle by folding or tucking the paper
Press all edges firmly to hold the shape