But in the *Abscence* of any Standard Piece of Equipment, such as the P-38, -What might Anyone Cobble Together from Ordinary, Natural or Everyday Life, Materials at Hand?! For such Can Opening Purposes?!

Incidentally, I've Used a Simple Bottle Opener / or the Kind of Can Opener with a Triangular Based Metal Point, on it's End, -to Open Cans with. You just Keep Doing so all the way Around the Can, Creating Triangular Open Spaces all the way Around, as you go. You either then Entirely Get the Top Off that Way, or the Small Metal Connections yet Remaining, can Very Easily be Broken Off.

Again, -Absent a P-38 or Other Standard Equipment being on Hand, What Might you Jury Rig?, -from Natural or Other Non-Standard Materials!, -as May be Available? Towards Can Opening Purposes?

(Any Sort of a Standard Can Opener in Itself, is obviously Discluded in this Question, as an Option.)
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