My A-MAZING co-worker (and her students....they are clever!) came up with this idea that works like a charm!
While we got ready for lunch today, we played 'Zookeepers.' I picked 2 people to be the zookeepers. Everyone has to get ready for lunch (and line up) SUPER QUIETLY to avoid getting caught by the zookeeper. If they are noisy, the zookeeper taps them on the shoulder and they have to go sit at their desk. When the game is over, I write down the names of those who got 'caught' and they get to practice lining up quietly for 2 minutes during specialties. Most of my students were SILENT and the ones who got caught were not happy about it....so I'm confident they will be trying EXTRA hard tomorrow to avoid being caught again:)