They should put this on every portable kid-friendly media player with a button that says, "Three Minute Timeout." The overexuberant kid watches this video from Kesang Marstrand's lullaby album Hello Night disk (review), and three minutes later, presto, totally centered!
(OK, perhaps actually being out in nature would be better, but can't do that all the time, right?)
Kesang Marstrand - "Carry On Crickets" [YouTube]
And if you liked that, here's a bonus fan video...
Kesang Marstrand - "Dandelion" [YouTube]