I remember the Ernie and Bert dolls I had as a child; they seem to be rather obscure. They were made by the company called Knickerbocker. They were basically rag dolls that could not stand and their facial features were just drawn on them, except for their ears. They also had removable clothes. On the back of their boxes, you'd see a picture of Ernie, Bert, and Betty Lou. I don't believe any other Sesame Street characters were made in this particular company's style, and I suspect that the Betty Lou one may have never even been released.