Not really. You can see a smaller homemade version of the shake light here: http://www.instructables.com/id/Shake-it-like-a-Tic-Tac!/ http://www.instructables.c

Not really. You can see a smaller homemade version of the shake light here: http://www.instructables.com/id/Shake-it-like-a-Tic-Tac!/ http://www.instructables.com/id/Shake-it-like-a-Tic-Tac!/ That could almost fit in a AAA. The capacitor or battery would be the largest part after the magnet/coil mechanism.