At school, I noticed two colleagues doing the following: one was cutting folders in half and adding half sheets to make learning books for her students, and another was using quarter sheets of acetate for the overhead projector with vocabulary, quotations or formulas.
So I came up with this after making my observations, a small brag book.
An acetate book using two sheets (8 1/2 by 11), one of acetate, one of double sided patterned scrapbook paper.
Or if you can use two sheets of one sided patterned paper (co-ordinate), cut each in half and glue them together back to back.
Make sure you observe how the pattern is running, an overall repeat pattern is better to choose (like dots as an example).
You will also need 4 pronged brass fasteners, a punch, and a piece of paper for the binding (4 inches by 4 1/2 inches).
Cut the acetate and patterned paper in half so it measures 4 1/4 by 11 inches giving you four pieces to work with.
Lay down and make a sandwich of acetate, paper, acetate, paper OR acetate, paper, paper, acetate
Fold over all layers making sure the edges are all even.
Near the fold, you are going to punch four holes, two each on the either side of the fold. You punch from the top and bottom of the book.
You may have to make a template to punch the holes in each sheet because punching the holes through all layers is difficult. Use/recycle chipboard from a food box to make a template, cut 4 1/4 by 5 1/2 with two holes evenly spaced on the left side. Line up with the fold and punch from the top or bottom. Reverse the template for second set of holes.
Fold a piece of 4 inches by 4 1/4 inches of paper in half, then half the half again by folding the two outside edges in toward the center.
Punch holes in this folded piece (binding) that line up with the holes in the acetate and paper.
Place the paper binding on the outside edge and add the fasteners so that the prongs are on the inside of the book when folded.
The book will be bulking so you will need to press it under something heavy for a day or two to flatten a bit.
I put the book on a small towel, folded the towel over, then put a huge cement brick over it.
A stack of heavy books would work also.
I let mine press for a day or two.
Once flat you can add fibers and tags on the binding.
If you have made one, leave a link to your project in the site URL box in the comments.