I might suggest getting some visually imaginative films...experimental films, animations, avant-garde short films and the like. These would be MUCH more fun to play music too in my book. Maybe even some old silent films...something like Cabinet of Dr. Caligari or old Fritz Lang movies.
We used to project films on an instrumental post-rock/art rock band I played with. Some of my favorites for this:
Decasia: a visual film that is a montage of old, dissolving, disintegrating film stock that morphs and bubbles in a very evocative fashion. Decasia (2002)
Fantastic Planet: awesome surreal '70s sci-fi Czech animation Planète sauvage, La (1973)
the films of Harry Smith: creator of some of the MOST amazing experimental short films ever created as far as I'm concerned. This one is in particular amazing to watch with different musics to see how it morphs to the tunage. I've know of a couple of bands that have dedicated special performances to playing along with his 'Early Abstractions' films...Califone for one and, I think, Olivia Tremor Control. Early Abstractions (1987) Heaven and Earth Magic (1962)
Chronopolis: more off-the-hook Euro-art courtesy of the polish animator Piotr Kamlr Chronopolis (1983)
You could also look into some of the stuff by Jan Svankmeyer, Jordan Belson, Stan Brakhage...This type of filmwork is something I'm way into, so I could go on and on...but I won't. Those are a few favs though.