So, This Guy Made a Plasma Rifle
The A3-21 Plasma Rifle from Fallout 3 to be exact(bottom). How amazing does the craftsmanship look on that? He also made the AER9 Laser Rifle, also from Fallout 3(above). You can check out the rest of his photos of them here.
It turns out the creator of these is an animator in the games industry. If prop work paid more he might want to look into that.