https://www.energizer.com/science-center/how-to-make-a-flashlight
https://www.youtube.com/watch?v=djH8f-GMtMI&t=62s
https://www.amazon.com/gp/product/B075TSZRSL/ref=ppx_yo_dt_b_asin_image_o05_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B000YHXX8K/ref=ppx_yo_dt_b_asin_image_o06_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B08MZV297N/ref=ppx_yo_dt_b_asin_image_o04_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B004LWNHSK/ref=ppx_yo_dt_b_asin_image_o03_s00?ie=UTF8&psc=1