Another "calming jar" idea: your kids shake the bottle and then have to watch it till the glitter settles to the bottom. This one has the advantage of being in non-breakable plastic bottles. Also, you can superglue the lids on, so the kids don't open the bottles and drink the glitter glue while they're "calming down." Plastic Bottle, Water Bottle, For Kids, Time Out, Sensory Bottles, Glitter Jars, Timeout, Relaxing Bottle, Glitter Bottle
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Ways to Play and Learn with Water Indoors -- number 9 is my favorite. Keeps the kids busy for a long time!!