I love the freezer paper method. Cut it a little large, use glue stick on the edges, fold them over and iron. I also use glue stick on the back and iron it into place, then machine quilt it down. works great.
I did a harley quilt this way, I did every letter and the edges have not frayed yet, so I must have made my edges large enough that they were stitched down well. ...whew...