In Julia's book, she suggests painting the pieces at the end to simulate the look of metal (similar to Hardware or Filigree sections). I wanted my bits to look like leather, so (using a Tim Holtz die cut) I cut the top layers for two pieces out of the Leather Paper that I made earlier. Also cut two pieces of plain brown card stock to be the bottom layers. Julia mentions that thinner layers will hold their shape better, and recommends only using 2 - 3 layers of die cuts for this project.
Adhere 2 or 3 matching layers of die cuts with white glue, and WHILE the glue is still wet, form the shape around a dowel or paint brush. I used a small hand weight, because my pieces are quite large. I folded back the sections I wanted to lay flat.
After the piece is completely dry, smooth the rough edges with sandpaper or a small file. Paint and age as desired. Because I started with the leather paper, I just colored the edges with Aged Mahogany Distress ink (the same ink I'd used in making this piece of Leather Paper).