Pattern: I make these so often that I don't need a pattern, I originally used the handkerchief pattern from Purl Soho, but I never hand-stitched them, I don't have that kind of time, quite frankly. I make mine larger, too. So, basically, I didn't use a pattern at all. But they are inspired by the Purl Soho, ones.
Materials: 1/2 yard of blue print fabric, red print fabric, and red kona solid
Notes/Thoughts/Etcetera: These are really easy to do. I cut my fabric to 17" square to work with (I also do no launder the fabric first). They generally shrink down to around 15" when all is said and done.