Step Three: Brainstorm
This works best if you can get a small group together, but can also be done solo. Set up a place with a lot of writing space - use dry erase boards, easels with big paper pads, note cards, etc.
Go through your props. Look up words or concepts in the books. Rearrange your various props so you can look at them in different ways.Write down *everything*that comes to mind and all the new ideas each phrase sparks. They do not have to make sense. You want a large number of ideas.
There are additional brainstorming resources down the left margin at the URL listed above.