In the spring a few years ago I found those packs of fatwood at Walmart on clearance for $.25 a pack. I bought like 4 display boxes full. Probably a lifetime supply for me, as it doesn’t take me much to start a fire. At the time I thought it was really stupid of them to clearance them. They should have just moved them from the fireplace section to the camping section for spring/summer. Recently I saw they also sell larger 5 lb packages of fatwood at Walmart too.

Another idea you could try instead of wrapping with waxed floss is to use rubber bands. I think they’d burn better than floss.