I would have preferred if these were looping GIFs, or if there was a way to watch these videos on loop without interruptions. There was a similar site that had looped animation for a lot of these.
On the youtube page if you're using the HTML5 player, you can make them loop at least in chrome. Just right click the video, which should bring up the youtube menu. Just right-click again in the video area (not on their popup menu, but while it's still up), and "Loop" should be an option.
