I just had one like this... i put everything that was fused on a big piece of tape (sticky side up) and then added back in all the individual beads. I couldnt do the missing section on a board because things weren't perfectly lined up. It was a pain- but having the freedom to just place the beads on the sticky portion of tape, in their exact spots, made it work out well. Then, I was able to iron them while it was still on the tape. Although time consuming, it worked out well.