Sometimes it is hard to help teammates out as its not always that they can see me...being a peanut of course.  The question arose on how to best assist in improving hand-eye coordination.  The first thing I would have them do is a training routine of video games.  Yes, video games.  In particular, first person shooters.  It helps train your brain to understand, without looking, targets to aim for and how your eyes track and your hands can follow.  From there we would upgrade to playing catch with tennis balls, to then moving on to bouncing tennis-balls off of the wall rapidly and attempting to catch them before moving on to an attempt at full on juggling.  Once a player starts to feel comfortable there, we can apply it to hockey with the stick.  That way, the hand following the brain training is done, now its just getting the feel on the stick to determine exactly what pressure needs to be applied for proper velocity to get the height, speed and location you want on the puck.