Because the warp is unwashed, it will compress and fluff on washing, filling in the gaps of the weaving and tightening the whole textile up. I hope to have enough finished fabric to sew for him a hood.
I tried many times, striking the flint over and over with the steel. Sparks came easily, but it took some time before one landed in the right spot on the mushroom to ignite it (and when it took, it REALLY took). The flax next served well to catch fire so I could see how this method served well in the past. Unfortunately, there are no images of the actual fire because we were both so surprised when it actually took that no one thought to reach for the camera (and, to be honest, I almost dropped it I was so surprised)!