Steampunk'd Goggles

The finished goggles!
Black Cybergoth Goggles for the Punkin'

I had these black plastic goggles I wanted to punk. These can be purchased for < 10.00 GBP.
Materials

Selection of small headed brushes.
Some acrylic craft paint in a suitable metallic - I went with a bronze which I got from Hobbycraft for 2.50 GBP, there's plenty of paint leftover for further projects, but this was the smallest pack size I could find.
Optional: lizard lenses. I bought these cheap costume glasses from DiscountUK around Halloween (I think they were around the 1.00 GBP mark), simply because I wanted to use the lenses in something one day!
Total additional investment: 3.50 GBP
Break Apart for Painting

I unscrewed the lenses and painted the component parts separately, 2 thin coats give a better finish than trying to put too much paint on at once in one pass.
Leave paint to dry between coats. 2 coats of paint should suffice.
Re-assembly

When dry, re-assemble your goggles, swapping out lenses as appropriate for your project.