Access shapes within a MovieClip?

Hello and thanks for any help!
Here’s my basic issue: I have a movieclip, with several hundred shapes inside of it that I drew with the brush tool.

I want to convert each one of those shapes to a movieclip.
I could individually select each one by hand, convert it to movieclip, and then have a massive library. That would be a hassle to do, and really difficult to manage going forward and making changes.

I’d rather do something like


for each (var curShape:Shape in myMC)
 {
    var newMC:MovieClip = new MovieClip
    addChild(newMC);
    newMC.addChild(curShape);
}

and then I could access them as MCs henceforth (for collision detection, mainly).
That code does not work though!

Any ideas on how to convert every individual shape inside a MovieClip into a MovieClip using AS3?

Thanks so much for any help!
-Travis