Use an Acorn Cap to Whistle for Help if You Get Lost in the Woods
Use an acorn cap to loudly whistle for help if you're lost in the woods. | 41 Genius Camping Hacks You'll Wish You Thought Of Sooner. Yes! I learned this as a kid. Taught my kids. Great helpful skill. Even in the city. You can also use a bottle cap.
Edible flowers. Edible flowers. Some examples of flowers that you can use in your cooking. Make you you wash them well to make sure there are no critters in your dinner. Its worth the small amount of prep.