I can feel your pain. Years ago, I was making my first commissioned quilt, a Roman Stripe with black triangles, it was a striking quilt. Then, horror of horrors the client called to say that there were HOLES in some of the black triangles. I must have either used an older black in the quilt, or gotten some bad fabric and I hadn't noticed the holes when I was quilting the quilt. OK, now what do I do??? After much brain storming, I came upon a solution: I appliqued black triangles to the damaged triangles, then since I had done straight line quilting, I re-quilted those triangles, which made up about half the quilt. I was so embarrassed, however, the client was happy I had saved the quilt and I was happy he didn't ask for the money back. Like others have suggested, use fusible on the back of the tears and it should be fine.