How To Turn A Metal Can Lid Into An Emergency Whistle...
Tin cans seem too heavy and cumbersome to bring al... ...eem too heavy and cumbersome to bring along while camping or backpacking, but there are so many clever uses...
https://www.neatorama.com/2017/02/26/How-To-Turn-A-Metal-Can-Lid-Into-An-Emergency-Whistle/
