Shawnimals" Smith has a new Kickstarter running now for a mini version - I just placed my pledge for a 3-pack. Only $12! Super cheap. I love my original Resketch so much that I put it on the homepage of my personal website here. Definitely recommended, and at that price, you can't go wrong.
Resketch books are spiral-bound collections of assorted reclaimed/recycled/reused papers. Every page is different which is pretty exciting for me, sort of gets my brain working in a different way every time I flip a page to draw or take notes.