Answering a question asked earlier: Blast most likely used a Storm, Wind Storm, or Jetfire Whistle.
The night I won the shots at the Las Vegas bar I was carrying my
ARC Res-Q whistle. The size vs. noise of this thing is amazing. It is about 2" long, 1" wide, and only 3/16" thick.
When I'm out in the woods I carry a Jet Scream whistle on my survival necklace, but I'm thinking of replacing it with the ARC Res-Q.
-Blast