Comment: To be fair, not all the items are equally schlocky. Some are genuine attempts at Native-inspired art. Also, the southern Plains tribes living in Oklahoma did have chiefs and tipis, so these images aren't totally stereotypical. But the rest of the imagery--braves, wolves, canoes, eagles, etc.--is the same ol' stereotyping.
For more on the subject, see Tonto Revisited Stereotype Exhibit, Indian Toys and Games, and Indian Kitsch in Wisconsin Dells.