Putting aside the fact that you might look like the tourist from hell, the Digital Camera Mask does offer a convenient and easy solution to snapping pics of the family snorkeling expedition.  Built in to the mask is a 3 or 5 megapixel camera. and a cross hair for dead eye accuracy (probably not, but one can only hope).  Expect to get close ups because this thing has a 5 foot shooting distance.  The on board memory (16mb) will achieve a few photos, but fortunately there’s a microSD slot to increase memory capacity; you can even record VGA quality video.  Requires the ever allusive AAA batteries and plugs in via USB.

More info here.