The Wild West and beautiful souvenirs to remember it by. Do not be tempted by intricately carved scrimshaw products from walrus tusks, especially in Alaska, or by wall hangings displaying the feathers of wild birds. All native wild birds are protected in the USA: possessing even a feather is illegal. Products from American black bears, grizzly bears and polar bears require special permits in international commercial trade. Walruses, fur seals and other marine mammals are also protected and trade in their parts is only allowed for exempted Native American artisans.