I'm always hypnotized when I watch dominoes fall. Something about that little clacking noise takes me to a happy, calm place. Of course, if the domino display I'm watching is Nintendo-themed, I'm too busy geeking out to fall into a serene state of being. 

Seriously, I don't even want to know how long it takes to set up something like what's done in the video below. Well, it was time well spent. I especially like the part where they use Wii controllers and cases for dominoes. Counting Sonic as a Nintendo franchise loses them points, though.