Eye have a tip to share

I use a elcheapo welding mask without the dark lens and earplugs when I'm grinding under a car or when I'm laying on my side. This is from grinding under a car and having a big enough chunk of molten hot metal bounce into my ear canal, and almost burning a hole into my eardrum. It felt like it was what I would imagine a ice pick being shoved into my ear. And I've had slag from welding bounce behind me and back and do the same thing.