I ordered the boys a game called Mindflex, because one of them was having trouble focusing in school and at home. To play this game, you wear a belt around your head with sensors on your forehead and ears. It responds to brainwaves in the 'focused' zone, similar to an EEG. When the player is focused or concentrating, the game's fan goes on, and the ball lifts into the air.
The game is a little pricy, but I think it's a healthy way to help children learn to focus more effectively. And I have to admit - the game is fun for adults too! I suspect it will be popular with my psychology classes too, when we study EEGs and biofeedback.
Readers, do you feel like your concentration could use improvement?