My little sister, and most kids I know, attached themselves to a blanket on their own. Parents never introduced it to them in hopes of them attaching to it.

But in a book I'm reading, they suggest doing it and included a method in order to do so. That way you can control what item they "choose", and make it an item easy to replace.

Does your LO have one? Did they attach themselves to it on their own? What kind of item was it?