They've definitely been modified, but you should be able to kit-bash a pretty good replica with a little patience.

I actually have 10 pairs sitting in a box that I bought about a year ago to do steampunk modification on. They're really not that hard to find, they average $1-20 online and are easily found with google searches for 'welding goggles'.

I should throw mine up on eBay unmodified mwhahaa…

Okay, since I'm not evil, I'll even provide a link where you can get them super cheap.

http://www.toolking.com/products/3185207.aspx?googlebase=85207

$3.

The 10 I bought…I paid a buck something each for…so you can find them cheaper.

The outside is green plastic, so the Dr. Horrible ones are modified (looks like a quick spray of gold paint to me). The goggles themselves are of surprisingly decent quality.

The dark goggles are very difficult (to impossible) to see through, but they also flip up, revealing clear goggles underneath. They're really the coolest things out there to steampunk modify for steampunk goggles. The knobs on the sides…those are vents, to allow your face to stay cool.

I may be overstating the obvious, but don't use them for actual lab work. I had briefly considered it (for chem. lab work) but the green plastic sides def. wouldn't be good if you're working with strong acids or bases, and the limited visibility also not good. So I'm stuck with my dorky plexi-ones for my evil plans, I mean lab classes.

Thanks for the help, but these are the ones I'm trying to find

Goggles on Amazon

You can see there are six vent holes, three on each side. The ones you showed me I've seen with the four vent holes, which can be easily modified to look like the ones the Doc has. Still, I can't help but figure these goggles are out there that look the closest with the least modification…of course it might just be more fun to mod them myself…

Man, that show had such wonderful costume design. Giving Dr. Horrible the most kickass of costumes definately helped empathise with him even more. ^^ But even the casual costuming was wonderfully revealing about the characters. Did anyone else think "Snow White" when they saw Penny at the start of act 2?

Holy Snap!  We're gettin close!  Still, looking at the tshirt design on jinx.com, his goggles are definitely that silver/grayish color with some gold paint/spray paint splashed on there but it looks like the flip eye pieces are a combination of the goggles you showed put on top of the circle eyepieces that redfeather listed.  soooo cloooose…a little mix and match and viola!  Well, keep us updated on what they respond!

PS, minimum order of $50 on that site…i'll have to figure it out =)

Buy the chemical boots as well, they're 60 bucks.  That's what I just did!

http://www.mortonsafety.com/index.aspx?Command=GroupInfo&GroupID=10729

The Doctor's Gloves are Tillman welding gloves – not necessarily for chemicals, but definitely pretty thick.