Too late, the military was publicly talking about doing something like that years ago with one making metallic parts for vehicles in the field. This definitely does not reach the threshold of being non-obvious to someone versed in the field.
"There are things that are so serious that you can only joke about them"
- Heisenberg
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Or the usps providing local printing services for junk mail years ago. Never happened, but the idea was disclosed.
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This definitely does not reach the threshold of being non-obvious to someone versed in the field.