When SHTF, sometimes we need to get creative. While you may not have all of these items on hand, I just wanted to show you what you can do with items you may be able to scavenge and a little ingenuity (MacGyver anyone?). Ok, so after watching this video, you may not be running to the store to stock up on lemons, but I thought it was an interesting one.
But I thought this was a pretty clever, although not terribly practical idea. While you may not have these types of items lying around (zinc nails anyone? :)), it just goes to show you what might be possible if SHTF.