Oakum
Oakum is a preparation of tarred fibre used to seal gaps. Its main traditional applications were in shipbuilding, for caulking or packing the joints of timbers in wooden vessels and the deck planking of iron and steel ships; in plumbing, for sealing joints in cast iron pipe; and in log cabins for chinking. In ship caulking, it was forced between the seams using a hammer and a caulking iron, then sealed into place with hot pitch.
Bead breaker
Invented in 1984 by David Allen Dayton. A bead breaker is a tool used for separating tires from rims. The inner-most diameter of the tire that interfaces with a wheel is called the Tire Bead. The tire bead is a thicker section of rubber, and is reinforced with braided steel cable, called the Bead Bundle. The inner-most surface of the tire bead creates the air seal between the tire and rim on a radial-ply tire and a bias-ply tire. Often, the bead can become frozen to the rim after rusting or corrosion occurs, requiring the use of a bead breaker in order to be removed.