I have been making my own journals now for several days. The top two are made from a recycled post cereal box that was decoupaged with images from magazines and Catalogs.
The bottom journal is just a pad of watercolor paper that I took apart. I added a piece of pattered scrapbook paper on the cover and then did some sewing before I bound it all together. This is filled with additional papers as well.
Of course words and a bit of bling are always needed.
I filled the inside with heavy watercolor paper cut to fit each journal, added both patterned & plain scrapbook paper, quotes and allot of space to write your thoughts. Then I bound it all together with the "Bind it all" machine made by Zutter..
You can use any kind of cardboard for the front and back covers and what ever you have around to fill the insides. I found that the heavier the paper or glue a couple of pieces together makes a book that can hold up to the wear and tear that I put mine thru.
As if you could kill time without injuring eternity.
Henry David Thoreau