This is a cute little Christmas or seasonal wall hanging that is quite easy to do.  There is only one quilt block, which is repeated around the word JOY.  The quilt blocks are made from tiny squares and half square triangles.  You could use any similar 9-patch quilt block, such as the Bear Claw quilt block, and it would be just as cute.  Notice that the letters were pieced, as opposed to doing them by appliqué.  They do not have any round corners.