Borrow (read "steal") one of your wife's makeup brushes to dust the figures themselves. If you have a diorama, or don't want to move a bunch of stuff, a hairdryer sat on cool will blow loose dust from between the figures. Do this dry, no furniture polish or water. And above all, be extremely carefull. Knocking over, chipping or breaking K&C products will cause an instant migraine. Believe me. Over the past ten+ years I have learned this the hard way.