Make a survival whistle from a soda can

I love making things out of sheet metal, so when I found this video on YouTube demonstrating how to make a survival whistle out of a soda can I had to give it a try. I was surprised at how easy and how well it worked! It's a very simple and clever design, and once you've made one I'm pretty sure that you will remember how to do it forever.

A great way to impress your friends, or call for help if you ever get lost in the woods!