Last Friday I went to a “Breaking Benjamin” show. At one point the lead singer asked everyone in the arena to run on their cell phone lights, and then had all the house lights turned off. The only lights in the hall were thousands of cell lights. It looked really coll.
This was a fans youtube video of the same thing:

I was shooting a wedding and at the end the couple had to walk down a “gauntlet” of all the wedding guests and into their limo.

I stole the cell phone idea and had all the wedding guests shine their phone lights on the couple. I thought it looked really cool!