The qube are good I bought the 12" one, I'm using the 4" clam shell at the moment to make a wall hanging where you make a panda face and scatter pandas throughout the other clam shells, it was a Jo Carter design in Love Patchwork n Quilting magazine. I'm going to use the 8" clamshell and make a quilt for my grandaughter with the pandas and another quilt for myself in Moda Black Tie fabrics