1. Apple: I like the third one down but thought I'd just link to the page since there are other apple charms.
2. Wolf: Maybe the fourth one down or the last one.
3. Shoe: I think this one is the best but obviously you can check out the other ones. It kinda looks like the one on the cover of Cinder.
4. Computer: I could only find a computer mouse charm. I swear I've seen laptops. I can't really think of anything else to represent Cress at the moment. If I do think of something I'll just update this post.
5. Crown: I'm not sure about them but I was thinking about using this for Kai since I can't anything of anything else at the moment.
6. Tiara: There's only one.
You can get charm bracelets from this place and get them attached for an additional ten bucks.
I'm still reading Winter since I don't really want it to end and I have other books to read. If I think of any others I'll just update the post.