Yeah... the lamppost was not part of the gift. :-D It was just the box with the letter and the book. From what I heard, they only sent out 50 of them, and the number, hand-written on the item, was just the number that we got. I do not know where all of them went, but it was a very kind gesture to send this out to people.
You're not the only one to be skeptical of this gift, but that is most definitely rooted in fear that she will do the book a great disservice with her adaptation. I'm taking a wait-and-see approach. I'm going to see the movie, no matter what it turns out to be, so I can give it as fair a look as possible.
When I review the movie, I'm going to look at it from multiple angles.
1) How does it work as a film, in a vacuum? I'm going to give it a score based on the film itself. I'm going to base my score on how it works as a fantasy film, to me, if the book didn't exist, and all I had was this film, just like seeing Toy Story 5, which isn't based on a book. I'm intentionally not re-reading The Magician's Nephew in the run-up to the film's release. It will be difficult to separate my own visions of it, but this will help.
2) How does it work as an adaptation? I'm going to score the film based on my memories of the book. This score might be different from the above score, but it could honestly be the same. It depends on how the movie turns out. I am also going to re-read the book at this point, and will either revise this part of my review, or write an all-new analysis review, once I'm able to read it and see the movie close together.
3) I'm going to give it a final score, which is not going to be an average, but how I feel overall.
So if I gave the movie an A as a film, a B as an Adaptation, and an A overall, it's because that's how I felt about it, and why it's not an A- or something. But I'll give all of my reasoning behind things, and why I score it like I do. I don't like reviews much, myself, but when I have read them, the ones I liked actually backed up their scores with facts (opinions).