Simple cheap goggles for working with deathrays. I made them a while ago, but i thought i´ll share it anyway.
I didn´t need any expensive ones, i just needed to protect my eyes.
You can slowly lost your vision by looking at the spot where you concentrate the light, if you don't use protection.
If you have a dog, he should wear goggles too!
Here's what i've used:
electric insulation sticky tape
welding helmet glass
some plastic gears from a scanner
needle & thread
* Do not use these goggles for welding