Start with a sheet of black construction paper -- sometimes known as sugar paper. Crumple the paper well, then flatten it out an little and glue it to the center of a background sheet, preserving the folds by pushing and scrunching the paper together as you glue.
When the paper is dry, set up a palette with three shades of one color. I used bronze, copper, and gold acrylic paint. Using a dry brush, dab into the darkest shade and begin whisking the brush in one direction (for example, left to right) across the ridges to pick out the contours. When you've done that, turn the paper a quarter turn, then take the second color and repeat the dry brush whisking process, using the same direction you used the first time. In my case that would be left to right again. This highlights the same ridges you highlighted the first time from a different angle, and it also helps make more ridges visible. Repeat the process, turning the paper a further quarter turn and using the third color. Again, some ridges will be highlighted from yet another angle, and more new ridges will appear, because your brush will pass over more surfaces.
The paper and paint I used left me with a piece that looks like folded metal. Other colors of paper and paint will produce other effects.When the paint was dry, I cut off the protruding background paper, so I was left only with the dimensional paper.You can use the sheets as they are, or you might cut them into strips and squares and create a pattern by turning some of them.
If I get around to making another sheet today, I'll post a pattern example tomorrow or Monday.