I found images of the flag books below on this: 
blog: http://www.herringbonebindery.com/blog/tag/tunnel-book/. I kind of like the idea of telling a story when you look at it from one angle, and then seeing a picture that supports that story. I also kind of like the black and white images, I think the most color I would have in my flag book would be white and one other color, or just black and white. Here is the link to this bookbinders webpage: 
http://karenhanmer.com/
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| Flagbook by: Karen Hanmer | 
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| Flagbook by: Karen Hanmer The cover | 
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| Flagbook by: Karen Hanmer The story | 
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| Flagbook by: Karen Hanmer The final image, collage |