I have two scribes. One is a pin vice with a reversed bit and a sharpened tip. The other is a double ended holder with carbide points on each end. That gives me three sizes. I use renwax to seal the bone before and during working on it. I sand to 600 grit and then wax, draw the design, scribe, ink, wipe, wax and repeat until I either get mad and sand it off or I finish, which ever comes first. I have never really practiced much at drawing some it is a long process for me. I’ve been doodling this design for a few months, as pencil doodles. Then a took a couple runs at it doodling on the bone and was lucky enough to have not sanded this one off. It is in the planning for a pair of Herder razor and a nice display box. I have no idea if Sasquatch is going to be on both or if another mystical animal is the other scale. No sense rushing into these things.