Feather Sticks or Fuzz Sticks? Two names. One purpose. Feather sticks are used in order to aid in fire making during wet conditions, and they are also a great way to practice bushcraft knife control. Krik of Black Owl Outdoors creates feather sticks with 4 different knives with 4 different grinds: a convex grind, a saber grind, a Scandinavian grind, and a full flat grind.