Simple but funny.
This video is a couple of years old, but it was recently brought to our attention recently by one of the participants, Jad Taylor. He writes:
I just graduated from Clemson University in South Carolina and two Decembers ago we organized a synchronized dance on the library bridge (focal point of campus) in order to cheer people up during the pre-Exam week suckiness. We had so much fun we did it again this year.
A student group in Poland executed a series of projects where they used the lights in their dorm room to create awesomeness. In the above video you can see a game of Snake and a bit of Pong at the very end. Their YouTube channel has several other videos, including this James Bond video:
There have been several examples of students using the same technique to create massive games of Tetris. Here’s a video a Russian group that pulled it off: