Worth a try,certainly.
---------- Post added at 04:39 PM ---------- Previous post was at 04:35 PM ----------
You have probably seen these too
http://www.instructables.com/id/Calm...a-Glitter-Jar/ Others may have to give you some scripts about what it would look like.Dont know that they are spmething he would go to starightaway at first but if you have a talk with him ahead of time about using them when he gets those big feelings.I knos some peole put that stuff ina cozy or quiet corner