How To Turn A Metal Can Lid Into An Emergency Whistle

Tin cans seem too heavy and cumbersome to bring along while camping or backpacking, but there are so many clever uses for an empty can they make a great addition to your pack. Of course, you'll have to pack a can opener too...
Anyhoo, this fun video by Specific Love Creations shows you how to turn a lid from a metal can into a survival whistle, so you won't lose your friends while you're out getting lost in the woods.
Or just make one at home and drive your pets crazy!

(YouTube Link)