This class will allow you to create a pixellated copy of any display object.

It allows for varying pixel sizes and caching of rendered pixels so you don’t have to redraw them every time.

mosaic

Usage is as follows:

var myMoz:Mosaic = new Mosaic(yourDisplayObj:DisplayObject, pixelSize:uint, useCache:Boolean);
addChild(myMoz);

or

var myMoz:Mosaic = new Mosaic(yourDisplayObj);
myMoz.pixelSize = 10;
myMoz.render();

Give it a try and let me know what you think.