Charred pure cotton cloth - monk's cloth, flannel and Terry cloth all fast, good. Amadeus - Fomes fomentarius not as good as chaga - Inonotus obliquuous ( true tinder fungus). Thin slivers of mullein pith (mullein non-native plant). Charred punky woods, weeds including mullein. Jerusalem artichoke inner pith, sunflower, teasel, cattail stalk. Old man's beard- lichen. Milkweed hair, cattail puffs, cotton wood tree cotton in the spring, thistle down all burn up too soon in a flash. Milkweed pod ovum best used to ignite a coal extender. The oaken I used in giant tinder tubes also makes good tinder most as does teased cotton bolls freshly harvested.