I have done something similar. We were going to play Wii one night but my friend brought the wrong adapter.

As the old saying goes: “Copper is copper!”
But he used a paper clip, that is steel.

I was thinking about the cables themselves but, you’re right about the McGuyvered adapter!

Wonder if it gets hot over time. 🤔

…I really don’t know electronics and want to pick it up soon haha.

Resistance depends on material and length, steel is fine for that short distance

Incidentally Earth can carry a lot of current since though it has high resistivity, the conductor is about 18,000km across