This one is my favorite. I went all-out and made multiple versions so you can build it YOUR way:
A) Print-in-place (clean version)
B) Print-in-place (carved font version)
C) Non-PIP version – use bolts & nuts if you prefer real hardware
D) Printable graphics (regular printer) for extra detail
E) Vector graphics file for cutting machines and custom finishing
It folds, it has a strap/belt slot, plus dedicated belt holders so you can mount it exactly like in the movie.