dry ice and smash it with a sledgehammer or drop it from a tall building.
While all of those ways sound like awesome ways to destroy a phone, if you actually want to make it useful for others, I'd put it through a few normal durability tests. Dropping it from your lap out of the car, down some stairs, onto a hard surface which then falls onto another hard surface etc etc...
Though a microwave and guns do sound pretty awesome...
You could put it through various machine tests. Use my phone at a metal forging facility, constantly fighting to keep it away from the hundreds of hazards I encounter every day.
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Drop it off of your roof or the roof of a building.
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Current ROM: Newt's One XxX Sense 4.0
Fungo that MFer with a ballbat. Did it years ago with my blackjack1. Good times!
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I accidentally shot my D1 w/ 6.8SPC. Wasn't all that exciting. Baseball bat might be fun. Microwave would be fun. Or thermite!
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