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Here is a metal shelf that I made, it was based off this image. Imageshack.us
There is extra detail in the metal shelf as I added black circles to the texture and then did an alpha channel and the bump map and then in the end it made small holes that are see through. I did all that the simulate the holes that would be in a real metal shelf.
Note that I created the textures and models for these items by myself. For the textures I followed a tutorial and did extra stuff along the way to achieve the end result.