hi!! saw your post on the secret reaper thread,about shipping costs keeping you from joining in- just to let you know, that several people in the past have asked me to give them some one close to their house, in the same or neighboring state, depending on the person, for shipping costs, so don't let that stop you from joining, I try to work with people so every one can participate!
The sensor on that Spirit magic book is located on the top of the book where the pages would be - near the power switch. I tried propping it up against a bowl of fruit, and it opened and closed just fine, though it did shift a little half way through opening. It would probably work best if you had some kind of cookbook or music stand.