[PortalTron]

One possibility I personally think would make sense would be film reels for three reasons:

1. Films are pretty much the successor to books. Lots of books have been made into movies, and it would also fit into a nice "Book vs. Movie" theme.

2. The finishers flip through pictures to create the moving image of the finisher. A film reel could easily be the *better* or more improved version of their finishers to be seen as more powerful.

3. There are lots of notable movie adaptations of books, and lots of said books have yet to be used in Saber. Examples being: Dracula, Frankenstein, Sherlock Holmes, the Illiad and Odyssey, Treasure Island, etc. There are lots of options that could fit into both a movie theme and book theme.