Founder. I had won the book in a giveaway but didn't really expect to get anything else along with it because of the shipping costs and so I was really excited to find it in my mailbox.
The package, which seems to have an Amazon theme related to the book, included a beautiful butterfly clip that appears to be made out of feathers.
As well as an autographed copy of Founder, autographed bookmarks, a fountain pen (which makes me want to go out and get some nice stationary to match, though then I'd have to find someone to write to) a bag of Brazilian nuts (yum!) and a beautiful photograph of a poison dart frog (which my 3yr old keeps trying to steal from me).
This package really brightened up my week and I'm really looking forward to getting started on the book (while snacking on some of those delicious nuts).