Observing all laws and appropriate safety precautions, I think I’d like to see it discharge EXTREMELY rapidly.
Full 8AWG short.
Measure current draw with a clamp meter.
I like that idea a lot, but I don’t have a clamp meter.
Cu is sooo last year. Make your own superconductor. Liquid nitrogen not included; and it won’t superconduct very long as it heats up!
How about Lucky Luke style? Throw it up, bang - bang, falls down with two holes. 
Hum, put it reversed in a flashlight without Reverse Polarity Protection and measure the heat 
Maybe with some matches inside and flamable liquid too 
That would be a Hell Of A Shot — a 18650 at 1000 yds — Please video
He’s joking, the best marksman would spend all day trying to hit that at 1000yards with consumer grade guns and ammo. And still never hit it.
you think
I remember a few years back word going around the internet that Apple had released an iOS update that allowed the latest model of iPhone to be recharged in a microwave…
Find some Ukrainian guys with swim-goggles (safety equipment) and a hammer and/or axe.
Ooh, ooh. 12ga shotgun shell (~18mm), cut down to remove the shot but leave the wadding, drop the 18650 in there musket-style, and blast it into a brick wall.
18650… that’s a little loose for a 12 gauge and a bit tight for a 16 gauge… but I bet it would fit nicely in a in a high-brass 3” 12g birdshot shot cup.
Just Saying…… 
Or, maybe you have a pair of large jaw vice grips or channel locks that need heat treated?
Hence “leave the wadding”. Let that do all the work. :laughing:
That shotgun idea could be impressive.
Or it’s possible the sidewalls of the battery will buckle due to the high acceleration involved, jamming the battery inside the barrel, likely damaging the barrel and potentially even creating a risk of overpressure.
I wouldn’t recommend it without taking significant precautions.
don’t use a full choke barrel 
Yea, that’s what I was thinking. I can’t guarantee my safety doing that, so that idea is out.
Okay, so back to the Ukrainian guys…
If the cell fits in the shotcup, and the barrel is not choked, it will be safe.
One word.
Tannerite