Common Theme?

Anyone notice a common theme of the following pictures? It's an odd pairing, but my childhood teddy bear (Bo Bear) and Elmo appear to be inseparable. They are also inseparable from my child, who carries them everywhere and refers to the collectively as "Bubba." They take naps with her. They eat every meal with her. They spend every night in her arms. They assist her in her play with other toys. They watch television with her. They sit in her car with her. They ride in my car with us. And lately, they've even visited mall play areas, the museum, and grocery stores. (We're putting a stop to that, however, and they will now patiently await her return in the car). Most kids have a "lovey" to which they are firmly attached at her age. Not to be outdone by the ordinary, however, Kendall has TWO!