My avatar uses this technique. I did 1/2 square triangle in the corner. Color is key to the contrast. The greater the contrast the better the effect. I used three colors. Dark green for the sides of the box, light green for the bottom of the box and a narrow black strip of black for the edge of the box.
The pattern I used was a free download for a wall hanging and I just added more squares to make a lap quilt for a friend. If interested you can google cat in the attic for several links. These cats are not appliqued nor paper pieced so you have a lot of little pieces to work with.
Last edited by citruscountyquilter; 12-05-2014 at 03:34 AM.