Insect and Spider Identification: CLOSED: Whose home was this?, 1 by podster

podster wrote:
I found this "cocoon"? while raking this spring. It was attached to a twig by a flexible cord and the cocoon could sway with the wind. I would guess it was up in a tree. I found it under a red oak. It was open and the resident gone.

I've asked some of the locals and got some wierd answers (including a hummingbird nest). I have my own suspicions but would like to know for sure... Who lived here?

It is fairly large ~ about 2 inches long.