Hi Meg, I've made bookmarks as giveaways to my massage clients; they have info about various types of massage, a book recommendation, etc.
I used an 8.5x11in sheet horizontally and divided it in 4, so you get 4 bookmarks per sheet, 8.5in tall. There's a picture and text on each bookmark; I had them quick copied on index stock and cut.
It shouldn't be too hard to set this up. Your needs will vary from mine. I didn't create mine with Pages, but with Canvas. I've started to build a template for the bookmarks in Pages and will post it when done.
Paul