After acquiring horses, Plains Indians became more efficient buffalo hunters. Mounted hunters armed with bows and lances could ride down a bison, which would usually run in a straightaway course. Riding alongside their quarry, they would deliver killing shots or thrusts. In addition to buffalo, Plains Indians hunted deer, antelope, elk and various carnivores. Products from the latter were used mainly for decoration or as symbolic religious icons. Grizzly bears were considered to be the most dangerous game. In recognition of the life-and-death struggle that the hunting of grizzlies posed, the hunters of some tribes painted their faces and performed rituals similar to those conducted before going to war. Western and Northern Plains tribes used a variety of woods, including Osage orange and willow, to make their bows. After carving and shaping the wood, makers fortified the bows with buffalo sinew layered along their backs. Less than 4 feet long, the laminated bows were then strung with a sinew bowstring.