AS3 - New movieclip instance

I have 3 types of mc's. I would like to create a new instance of a random mc of one of those types. I wrote somenthing like this but I receive an error:

Error #1007: Instantiation attempted on a non-constructor.

i tried something like this:

var newMC:* = new match[i] as match[i];

match is an array that contains the 3 types of mc's. match[i] will be something like [object orange], so I want to create a new instance of orange mc.

How can I do that?