I made a T-shirt quilt several years ago from promotional t-shirts from where I worked. Be sure to use an iron-on stabilizer BEFORE you cut the block because the T-shirt fabric will roll up on you.....bad! French Fusion is a great light weight option. I also used shirt pocket emblems in a 4 patch as well as some elongated images stitched together separated by sashing to make all blocks equal. However, I saw a t-shirt quilt made by putting the images together in a collage effect. It was really cool.....outside the box for sure. Good luck; you will learn a lot as you go.