My daughter wanted to hollow out an old book for her Vday box
I wasn't sure how to go about this...so I made up my own way. I am sure there is a MUCH easier way...but hey, it worked!! :)
I bent over a few pages at a time, drew lines of where I wanted to cut. I used the width of the ruler.
Then I cut a bit on the bent/folded part, unbent the page and cut.
I continued until I had it as deep as she wanted it: