for my survival kit and as they burn very slowly they can be reused or used alone if enough.
to do this you need:
and an egg box.
to make the sawdust charcoal you just get a disposable metal container with lid (non attachable), put the sawdust inside and put it inside a fire, shaking every minute. When the sawdust is black you can remove it. Now you have sawdust charcoal. If you touch it with a lighted macth it will start on fire almost instantly.
To turn it into fire starters put it in the egg box, until about middle, melt the candle and put the wax in the charcoal, until covered, wait a little and then remove tha excess.When the wax is fully dry, tear the egg box' egg holders by the wax and you're done.