Mine refers to it as Super Hero (for reasons I cannot fathom, it does not bend steal nor leap tall buildings), shakes it sometimes (had to get her to go gentler with that), talks to it, and pretends that it talks back to her in a voice only she can hear.
As revenge, I occasionally pretend that her boobs talk to me to, stuff like "Get us out of here! We can't breathe!" and "Shaaaaaaades. Squeeeeze us!"