HD Random is a little plugin for Modeler that lets you move polygons around randomly, without their points going all mishy mashy. You can see here I made a many-segmented box and beveled the segments a little. Then I selected the top polys and applied a little HD Random. Just drag in the direction you want to move the polygons, and squeal with delight as they jump about randomly, yet still keep their individual shapes!

Here's a .. um.. gee I don't even know what this is. Anyway, it was easy to model using HD Random.