7. Char Cloth Container
Cut the opened end off of an aluminum can. Fill the can with cattail fluff, cotton cloth, linen scraps, bark fiber or other suitable char materials. Fold the can opening to seal it up as best as you are able. Toss the closed can into a small fire and leave for 5 minutes. Roll it out with a stick, and allow it to cool. If the fire didn't disintegrate the can, you should have a suitable batch of "char cloth" to be used with flint and steel fire making or optical fire making.