My favorite scrappy quilts are made with string blocks. I put a white strip in the middle and I use a regular size paper towel for my foundation (about 11.4" square) and cut that down to 10". Bonnie Hunter makes her blocks smaller, but I like the bigger blocks. I've made four of these quilts. I kept two, sold one to my brother, and gave one to my daughter. I still have two big storage boxes of strings to use up. I don't even bother to sort my colors or my sizes, I just reach in and pull strips out to sew up.