I created an HD animation to mimic the old style 'leader countdowns' used by TV stations and while working with a library book on After Effects CS4, I was messing with 3D layers and some of the built-in effects.
So, I took my HD countdown video, dropped it into a film-strip and rotated the film strip in 3D space a little bit. I also added the offset effect in AE so that the strip appears to move from one side of the screen to the other.
The original countdown clip and some interesting variations can be found on my Pond5 account.
Feel free to use it for free in your non-commercial projects.
For free HD clips visit: digibard.org/freehd/