I didn't know I was creating "Smash" books...just recycling. LOL Fun things to use are inexpensive cook books and hobby books in 3 ring binders from places like Costco. Any bound pretty calendars from past years. Paste over things and leave dates with cool things to remember as they are. Nothing books and I've made my own personalized Nothing Books with Blurb.com. Old novels or old books with pretty cover but subject uninteresting or outdated. Old textbooks from college. Have friends sign some of the pages.