Duck tape, bobby pin, scissors and headband (optional).
Cut two pieces of duck tape about 3 inches long. Put the pieces together with the sticky sides.
Cut the sides of the tape so the edges are even and no sticky part is showing.
Fold the short side in accordion folds (back and forth). Cut another piece of duck tape, using the width of the tape as the length and cutting the width to 1/2 inch.
Insert the little strip between the bobby pin and wrap it around the folded piece.
You can also do the same thing with larger pieces to make a larger bow for a headband.