Redditor TheBlackShark_77 shared their custom Brotherhood of Steel LEGO set ... and Fat Man are all designs by other LEGO ...

How does designing a custom one-of-one piece differ from working on mass-produced LEGO sets? The entire process is different. The most stand-out difference is that our mass-produced LEGO® sets go ...

And the 3D-printed guns that were reliable and accurate needed off-the-shelf parts manufactured by gun companies, like the barrel. “That is very difficult to get hold of outside of the US.

The primary message: A majority of the movie should be created with existing Lego parts. If a part didn’t exist, it would have to be created, but always with the Lego quality in mind.