Here is a series by Triboro design called leftovers. Here is the description from the website.
Triboro Leftovers is a compilation of unpublished type treatments, photos,sketches, illustrations andlogo explorations that wehave created over the years. Rather than allow these to remain lost on our hard drives we decided to set them free. We mashed together elements from hundreds of different projects—and in the process—deliberately stripped the elements of their original context and meaning. The results are visual remixes which stand on their own.
I think simply as a collection of visuals they work really nicely and I think as an idea it's really nice, bringing together everything that wasn't used in one series. this would be meant as a book I imagine and aimed at anyone interested in bespoke pieces.