Calm Down Jar. It is really easy to make. The goal is that when they are feeling out of control, they shake the jar, then sit and watch the glitter settle in the water. When the glitter settles, they can get up.
Time-out bottles. Fill a bottle with 3/4 water, one bottle of glitter glue, & ultra fine glitter. Then send this bottle with your child to timeout and they can watch it settle to calm them. Once the glitter is settled their time is up! wow this is such a good idea! if they mess with the bottle their time out time is longer... interesting
Mind Jar -- meditation tool for all ages: "when stressed, overwhelmed, or upset, imagine the glitter as your thoughts/emotions. when you shake the jar, imagine your head full of whirling thoughts/emotions. then watch as they slowly settle together, and you calm down."