Got me a few pieces of 6' by 1" pipe insulation to cover the gunwales on my 14x32 flat bottom. The cheapest kind, dark gray foam, split down the middle with adhesive, with a 1" inner diameter. You know the stuff... anyway, it is for 2 purposes. It will protect the roof of the car (currently a minivan) from scratches, and dull the noise of paddles and fishing rods. Of course, being as cheap as it is, it would get torn up quickly. I got a big roll of Gorilla tape to cover them with, to make them more durable. I am thinking of covering up the adhesive on them so they will be removable. And if/when they fall apart, it's not expensive to replace. Anyone else used these for their boat?