So most of the steampunk costumes I see on the basic sites seem to all incorporate goggles, however when I start to look at more sophisticated costumes, they get more sparse. I think the key here is suitability. Just like those ‘glue a gear’ pieces I just don’t see a sophisticated, elegant lady totting around a pair of goggles. An airship hostess/pirate, sure. A lady adventurer, perhaps (though they’d be more like binoculars, I figure), but they really don’t lend themselves to the kind of costumes I have in mind.
On the other hand, those tiny little wire-rimmed glasses (Like the picture to the left from the Winnona Ryder/Keanu Reeves/Gary Oldman version of Dracula) would be suitable… Pinc Nez style, perhaps, jeweller’s lenses, certainly.. but I think I’ll leave the goggles to the same use as the cog-cuff.. a random accessory to throw on while wearing ‘normal’ clothes to associate myself, vs. being an integral part of a Steampunk Costume.
(However, here are some really beautiful goggles, should I ever change my mind: http://www.etsy.com/shop/steampunkdesign)