Check out this article on photography and graphic design. In this photo gallery, you'll find wood grain pictures, pictures of rust, and other texture photographs.
Two sides
© Jean-Francois Schmutz~textures and curves~
© bob cornelisonLooking Down ...
© Usman M. BajwaOld And Weathered
© Philip B. LudwigFrosty Morning on Tait Lake
© Bob BerluteWood and foam
© Robert K. Bemus