I've used the fuseable interfacing sewn to wrong side of blades and then turned right side out and fused to background square. You could only use the fuseable at the top of the blade ,turn it right side out and then I either blanket stitch or zig-zag to background. Elenor Burns has a tute on it if I didn't make sense.Sorry if I confused the idea but she also make whole plate than sewed fuseable sticky side in and irond it to block after turning it rightside out.(split fusesble so it can be turned) No raw edges.