Thanks, I used the 4 pin to dent the first layer for spacing and then hammered the single through and used it to open the holes larger on the back. I used a curved sewing needle and stitched waxed dacron (bow string) through. I put half through one hole and then the needle in the next hole and back again and slide the loose end on the other side through the hole, like a sewing machine would. Not sure if this is correct, but it works. Two over hand knots on the last hole on the back and stitch the loose ends back through three holes before cutting them off. Never came loose on my other one yet.
I can't put finished pictured in as it says I am limited to 1.46mb??