As part of an abortive cleaning spree, I unearthed some Winnie the Pooh stuffed toys (sadly without Pooh).
Ellie took to them.
Except that she INSISTED that there should be a Winnie the Pooh, and did not accept my failure in this regard.
So I managed to find a honey-colored stuffed teddy bear that she accepted as Winnie the Pooh, and everyone breathed a little easier for a time. Because a riled Ellie is a sight to behold, and although her sister has the ability to get wrongheaded ideas into her little skull, Margaret has always been blessedly distractible, whereas Ellie, once possessed of an idea, clings to it tenaciously.
Anyway, she adopted the bear, and showed us the truth of "wherever I am, there's always Pooh."
She was very good at looking after him, though, and set him up with books he might wish to peruse, because she knows from reading Winnie the Pooh that he likes stories about himself.