These photos are of a custom piece that turned out very very well. It's a sort of monotone (silk, leather and brads are all in a very rich chocolate brown) steampunk book with a few extra features. The back page has leather loops that fit most small to medium size pencils/brushes, and there extra pockets and the front, and one at the back that fits more full size pages.
This has got me to thinking about my own portfolio, lost somewhere in planning stages. I'm not actually a bookbinder by trade or training, my BA is in visual arts, and more specifically oil painting. I've been wanting to make myself some sort of book that's really an easy to carry around portfolio. Oils are a bit of a pain in the ass to travel with so it would be watercolour and pen. It's going have a section for displaying the finished paintings, a large pocket to hold the new pages, a board with elastics or somesuch to act as an easel while I'm painting, and room for brushes and my mini travel paint set. And it's going to happen... sometime... soon.