I spotted a stack of fire steel blanks in an outdoor shop and thought id have a go at making a handle for one. I had the choice of deer antler or birch burl. I decided on the antler as it was a nicer shape.
Ferrocerium rod (fire steel blank)
Step 1: Sanding off
I used the sanding piece on the dremel to remove the rough outer layer and sand in a thumb shaped dip so that the polished antler doesn't slide out of my hand when i strike it. This was all done with a rough sanding to P60.