Just experimenting with the Emphasis > Flash Bulb effect today. Here's a sample you can take a look at:
What I have done here is to have a number of AutoShapes, then applying the Emphasis > Flash Bulb effect on them. Next, set these effects to start "With Previous". Finally, have the second effect with a delay (Right click on effect, select the Timing tab) of 0.1 seconds, the third effect with a delay of 0.2 seconds, so on and so forth.
I will be experimenting with more Flash Bulb art in the next few days.