I have done many I sPy Quilts, at first I used a 4 inch wide border of white on white & with lettering in machine would write ISpy a dog, or I Spy a Car, etc, whatever was in the quilt. Then I stopped the border
R, added more squares, some the same. On the label I write “play I Spy & Match 2, no borders but a rick rack stitch between each block. I get many requests, all word of mouth. I’m working on 3 now.