It's not rocket science by a long shot. But recently when I realized I'd forgotten to sew in one of my preprinted quilt labels again, I knew I needed an alternative method. Now this isn't for those show quilts or to-be-gifted quilts. This is for the everyday quilt you just want your name on.
Cut a couple of matching rectangles out of coordinating scraps. Mine happen to be 2.5" x 3.5". Plus you'll need one of your preprinted labels. I'll show you what I did, and you can adapt as needed.