I have made several I-Spy quilts. I have never bought any fabric for the "I spy" part. I do have a lot of scraps and it has been fun sorting through them and pulling out "fun" fabrics. And they also bring back memories as I stitch them into the quilt. In one of them, my friend's gym shorts had worn out so she cut them into pieces in hopes I could use them. So a few years later, I gifted her daughter a I Spy quilt with a block in it featuring colorful frogs on it for the arrival of my friends first grandchild. I use all sorts of fabrics from my scraps, oranges, flowers, deer, barns, horses, dogs, people, tools, cars, sewing machines, ect. I have framed the featured fabric with white and used bright colored sashing strips, again from my stash.