Changing a parts color ... or not.

I've modeled a number of parts in SW2009 and assigned materials accordingly.  After assigning the material I would like to alter the color of the part without creating a custom material.  Basically just change the part color by altering its "appearance".  No texture, no real view graphics.  Just a simple color change.  It won't work.  I'm pulling my hair out.  Any help?SolidworksParts And Features