I've just finished making a chunky Laburnum handle for a ferro rod blank. You have to be careful when using laburnum as its not good to get the dust into your lungs or eyes so I wore a face mask and goggles. It was very easy to make,I used a hand saw to cut it to size then shaped it on my bench sander. I drilled an 8mm hole as thats the diameter of the ferro rod,then glued it in place using epoxy resin. It has a 6mm brass lanyard tube and good quality para cord with a striker.