Free: Contests & Raffles.
I did it once in Boy Scouts. Never again. Now I carry a Bic lighter. Summertime and the living is easy.
My outdoor survival instructor claimed sage was the best, not sure if it was for the drill or base though. Hard to find straight sage for a drill so would assume the base.
I have been successful....a couple of times. Hot summer day, reaaaally dry and dead maple hearth board and spindle....definitely had to work at it....got to where is was pretty easy to produce an ember with a bow drill....then you have to get that ember into some tinder and actually get it flame....Preparation is the key!! Man, if I had to do it in a survival situation here in western Washington in the winter time....well, it would be a cold night, for sure
The drill and hand plate should be of a hard wood type such as oak, while the base plate should be of a softer wood such as fir. As you start working the bow (very fast), the friction and heat builds up on the soft base plate , and the softer wood becomes hot ambers. Then it's dinner time.
Personal opinion and perspective: Though I carry at least three ways to start a fire and have a lot of experience in bad conditions, IME it is almost impossible to start and sustain a fire on the West End in late Fall using gear from pockets and pack. With a vehicle, axes, chainsaw etc. it can be done. Keeping a fire going is harder than getting it started out there after two months of steady rain. I want to know as many ways to start a fire as possible, using as many techniques and materials as possible, but I'd bet against anyone using friction to get a sustained fire going within an hour on the West End in late Fall after a week of rain, using only knife, pack saw and perhaps a pack hatchet. I.e. I'd not plan on friction fires in Western WA survival situations.My nephew might be able to do it but there aren't many folks who can.Learn all you can about friction fires, practice till you get good at it-- and carry a lighter, flint and steel and matches.
Carry 2 Bic lighters. Problem solved.