Prismacolor chrome markers and pencils. NOT REALLY, see, chrome is really just a highly reflective mirror surface and you couldn't really duplicate that with one marker because...... Oh hell, you understand. Sometimes I like to see what colors I can sneak into a chromed or polished surface and still get away with it. One thing, even though chrome is mirror-like, because of the shape of the object that is chromed, things that are a ways away can be rendered even farther off than maybe you might think. In other words, the reflected surface quickly transitions into the horizon so things like houses and trees etc. seldom look like trees and houses in the chrome. Get it? Good, now explain it to me.
It would help to know what medium you are working in;pencil,marker,airbrush,1-Shot,etc.If you are doing a pencil sketch,you can use varying gray tones to get the effect.Markers I usually use a medium blue for the sky and lay it on in a couple of passes toward the outer top edge to darken it a bit.For the ground,I will use an orange marker,make a light pass with it and hit it VERY lightly with either the blue or a gray.The horizon line is usually black sharply defined and in the center unless the piece you are drawing is concave.The best way to get an idea of the coloring is to actually study the various reflection on differently shaped pieces(concave,convex,flat,multicurved)and note which colors seem to predominate in different environments.
It's a tin panel acrylic monster type thing, so realism isn't a must. My mind just went blank..hmmm..could it be the beer?
Depends how much time you want to spend. I use combinations of Black,White,Silver,Process Blue,and Medium Brown. Heavy on the Silver/Greys. Not alot of straight Black,and less pure white than you think you need. Fog in a little Blue on the top,and a touch of Brown on the bottom.