This little keyhole scarf is worked in Noro Silk Garden Sock Yarn. I divided the ball of yarn so that the scarf would start with contrasting colors. The keyhole happens magically when you divide two layers of the brioche knitting and work them separately. The two layers are then reintroduced to make the main body of the scarf. Then the keyhole is once again worked and the scarf finishes with another tail of brioche knitting. This scarf is reversible, and since it was worked using a graduated-color yarn, there are four different colored keyholes to display.