Yep, just get the rectangular marquee and make a bunch of boxes and fill them with different shades of grey (or the same shade for all if you don't want variations - but keep them a version of grey because its easier to add color with Hue/Saturation (which is ALSO one of the options when you click on the split B&W circle at the bottom of the layers palette, and Alt-click between that and your boxes for even further editing capabilities). Don't worry about creating 3D objects and importing - this is just simple stuff we're talkig about to keep it fast. The reason I'm big on adjustment layers rather than adjusting the layer itself is because when you change Hue/Saturation (for example), when you go to do it again, you are actually starting from a different color now - with an adjustment layer you can just bring the adj-layer up and do a slight tweak from your ORIGINAL starting point because you wanted it "just a little bit further..." Make sense? I'm a commercial photographer and I do EXTENSIVE Photoshopping to the images, and I need it to go fast, and be able to re-adjust anything later on in case its the wrong color (example - I just had a shoot where they had a pendant they would be selling as earrings later - but they had the wrong color for the shoot - lavander gems, when they'll be selling ruby and sapphire ones - I needed to come up with 2 versions of each stone), or the client wants THIS element lighter, etc. Hope that helps- -Lew ;-)