I picked up this book today. It really is for a younger audience but hey...your as young as you feel. Great concepts in here for young and old. I was drawn to this page:
The sculptor Henry Moore collected bones, flints, driftwood, seashells, pebbles, whale vertebrae, and various other found objects; he used all of these things as sources for his own work, as well as using them as natural sculptures.
This reminded me of the basket I put at our front door the first weekend we moved to New Zealand. For the next four years I collected. Can't say I found a whale vertebrae but I had a beautiful bird nest with a cracked sky blue egg in it. I hid it all in a box when we were packing. It will be nice to see it again:)
Learn more about the book: http://lifestylepopculturebooks.suite101.com/article.cfm/book_review_how_to_be_an_explorer_of_the_world