This is also known as the SGI (Safety Goggles Illuminator).
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Step 1: Materials
-tape, as said in the previous version, electrical tape will do best for this
-LED flashlight, I recommend using high power LED's, I bought high power flashlight for USD 60 cents. It is extremely light, and is a good shine per buck flashlight.
Step 2: In the Making
Step 3: Operation
This must be the simplest instructable I made so far. Really, look at my other i'bles.