We've made one "book" already; we wrote her spelling words on index cards and bound them together with ribbon. I told her, since she was doing so well learning to read, that I thought she could do a real book if she wanted to make up her own story. She'd set a goal, and if she did it, we'd take it to a printer and make copies and get them bound up like real books.
So she's decided to write a seven-page book and illustrate it herself. Right now she says it's going to be about the pets, and it will be like a Dick and Jane book. I'll let you know how it goes!