We all know of the plugins for magic/spells but one using bukkitcontrib/mp mod would add new items and make the plugin commandless for users. There could be separate books for different spells and maybe a magic bar (I'm not sure if bukkitcontrib can make that possible or not).
Bukkitcontrib doesn't support GUI editing yet (although I heard it was being worked on. I'm also fairly certain it doesn't support new items either.
my bad...I was thinking of this. I'll go ahead and change the title. It would still be cool if someone could make something like that using a mp mod...