If you could build one thing from any game or film what would it be? Have you done it already? If so what did you build? More importantly, why?

I'm curious, I'm in the middle of a million projects, one of them is a film prop. Many lessons learned, biggest being to use proper safety gear. Fumes are bad m'kay? Despite some interesting issues (Pro tip, there is a certain way to remove scalpel blades, look it up for your own good), it is doing well, pictures soon of recent messes!