I saved all the seed packages after planting our vegetables last year. Some of the seeds came in little boxes and some came in paper envelopes. I transformed the little boxes into notebooks, then I made a cardboard slip case and covered it with the envelopes. Perfect for the gardener who likes to keep track of his veggies!
This next one is a bit odd. I had saved an old calendar that was full of photos of houses. I used the house photos to make this house-shaped book. It is basically an origami house structure, with a hardcover on each end. Not sure what practical purpose this serves, it was just an experiment that didn't come together very well. Old house photos aside, the structure might work well for a special greeting card or as a display format for some kinds of images.
(If you want to make an origami house, check out www.origami-instructions.com.)