I've watched customizer Billbobful for some time and he is both prolific and innovative with his customs. His latest is no exception.
First he sculpts a fantastic helmet concept for Darth Vader where the top most part of the helm is removable, a la the scene in Empire with Vader in his meditation chamber. What remains shows the various 'guts' of his helmet.
The second innovation is in his presentation of the LEGO lightsaber. Aiming a laser pointer at the 4L trans-red bar, creates a nice glow effect!
All if this becomes even more impressive when you realize that he's only 14!