25 total square=225 4" squares. The sashing is 3 inches wide. I used several different colors from my scrap bin, and placed them in rainbow order.
The colorful binding brings the colors of the quilt together. The white sashing calms the multiple fabrics down and the binding keeps it a fun quilt.
I used a full sheet for front and back. There wasn't much waste with this sheet. My MIL has requested one too--maybe another I-Spy swap needs to happen sooner than I thought :)