This is a small (one inch blocks) Pythagorean Theorem mug rug. I have had this quilt in mind since I was in high school and finally have the skills to sort of pull it off. I plan to try again to try to get the corners better, but I'm pretty proud of the free-motion quilting. This is the first time I've tried to do letters and they are at least readable. You'll note that the sum of the squares of the sides does indeed equal the square of the hypotenuse in a right triangle.
