Thank you to The Book Chook for this post about Glogster, a site that lets you design your own multi-media "posters."
This would be a great tool for libraries to use, both to create their own neat posters and - more importantly - to enable kids to advertise their own favorite books, book characters, fictional worlds, and so on.
I'm not very visually creative, but here's my first attempt. Be patient, it takes a minute to load.