This is another original... I basically bought a $3 sugar container and filled it with white rice and glitter. I taped and glued the hole shut (I left the "flap" to the container open so it can make the "noise" to be more realistic!). Whenever my kids are noisy/chatty, I "sprinkle" the silent sprinkles over their heads and then tell them to use the magic silent sprinkle to get self-control.. Works like, well magic :) :) :)
First, he blows some bubbles and, as expected, the kids all pop them. Then, he challenges them to NOT pop the bubbles even if one lands on the tip of their nose. Introduce the concept of self control and launch a discussion about stopping to think before you act. Dustin refers to it as a "bullet" in your year that you can refer back to again and again. "Think about that time when we didn't pop the bubbles..."