28. Whistle With An Acorn Cap
It is actually pretty easy to get lost while camping. If this happens to you, don’t worry! Find an acorn with a solid cap; one that is not cracked or deformed. A smaller cap will create a higher pitch. With the inside of the cap facing you, grab it between your thumb and index finger. Place both thumbs and index fingers on the acorn and make a small triangle shape at the top of the cap. Blow into the cap without letting air leave your upper and lower lips. It gets easier with practice!