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
YouTube channel: https://www.youtube.com/user/SteamTek
Step 1: Glass
Don´t use just ordinary tinted glass from some cheap goggles.
It needs to be so dark that you will not see almost anything throught it in a room, and you must be able to look into the sun with it.
I´ve took a glass from my old welding helmet.
Used a glass cutter to cut it in half, then in quares..uf,rather see the pictures:D
*look up how to cut glass by yourself, im bad at this:)
*cutted myself in a finger, so a pair of gloves is really handy
Step 2: Tubes
I had this paper tube. Easy to cut, then i used some tape to wrap it around.
After that i spray-painted it gold.
Step 3: Glass holder part
You should end up wih 2 weird looking plates.
Then...gold paint again.
Step 4: Leather
Put it on leather, leave some space next to it, wrap it, cut it, glue it, cut it and wait until it´s dry.
....then you can superglue those edges of leather inside the tube
... or take needle and thread and sew it like i did. Takes a while but looks really good.