I wonder if you could sub a tee shirt in the big square for a t-shirt quilt? DeNovo Quilt... simple but I love this!
Denim String Quilt made using 10" Paper Piecing Squares from MSQC. White denim was cut 1 1/2" wide. Various blue denims were cut various widths from 1 3/4" to 2 1/2". MSQC has a youtube video on how to make a string quilt.