I have one of those novelty cat clocks that has moving eyes and a wagging tail. I thought it might be fun to shoot about 20 minutes of time-lapse video of it so it would look like the cat was manic, with rapidly twitching eyes and tail.
Turned out that the frame-rate of my iPhone’s time-lapse feature is an even multiple of the eye-moving, tail-wagging period. As a result, the clock seems to look quite normal in the video if you don’t notice that its hands are moving rather rapidly (expand the video below to full-screen to see the hands more clearly).