Now this is not a book you might expect me to purchase if you know me well, because I am not a scrapbooker (as I think I've mentioned):
The Scrapbooker's Creativity Kit: Prompts And Ideas To Jump Start Your Layouts
But I'm taking Claudine's class and it sounded interesting (and I found a good price on a like-new copy!) so I thought I'd try it. And I think, now that I have it, that it's really not just for scrapbookers - or at least, it can be adapted to other things. What this basically is is sort of a prompt tool. It consists of two card sets and a book. One set of cards is colors and the other one is words. You're supposed to pick one word and two colors and brainstorm from that. I certainly think you could use this for collages and maybe for other things - the color part especially I could see using for jewelry, and maybe the words too. The book itself is full of example layouts from a number of different people as well as Claudine - some of them take the word part literally and incorporate it in their layout, and others just use it as a taking-off point. It's really interesting to see how differently different people respond to the same prompt.
I'm always partial to things that help you brainstorm - sometimes I can do my own brainstorming without assistance just fine, but other times a little push in some direction or other is really a lot of help. (Sometimes even if you don't like the results of the brainstorming, it helps, because you say to yourself, No, I don't want to do that! and it helps you clarify what you do want to do. At least that's sometimes what I do.)