https://en.wikipedia.org/wiki/MacGyver
https://en.wikipedia.org/wiki/Short_Circuit_(1986_film)
Per JohnyFive: "Titanium flake, Nickel wires, Lithium, D20 [or H2O], jar and 4 - 5V DC power supply. That is all ... you need."
https://en.wikipedia.org/wiki/…#Tables_of_AWG_wire_sizes