A completely full
Not even opened
Fire extinguisher (pictured next to an Tag can for size)
This got donated to me at work, and since we can't take chemicals, it would have ended up in the trash. BUT, I saved it from a garbagey fate.
Now. what would you guys like me to do with it's contents? I'll take a general consensus of the most mentioned options, and make a poll. Then the most voted for one will be performed by me, documented with pictures or a video.