In this episode Matt and Jeff share some of their survival hacks.
(supporting short video)
(LONG VERSION: to get the full story! 24 minutes of funny English!)
Fresnel lenses have the same magnifying properties as a traditional lens but using a lot less material. The are much thinner and lighter. The lens used in this video is made of acrylic.
They were first developed and used on lighthouses, but have applications in many areas like in aircraft carriers landing systems
(source Wikipedia USS Dwight D. Eisenhower )
You want to cut different shape and color of lure. Some will be more effective than others! It is a really cheap way to make lures ;-) You an also use an old credit card where the reflective security part can also attract your fish.