Originally Posted by
Fluxorious
A. Get a Drawing Tablett (theyre quite cheap begins from 50$)
B. Use the Pen tool to make smooth Lines with a mouse
So you don't go wasting money, graphic tablets aren't really necessary, but it can make the work load much easier.
If I'm correct, I am guessing the middle gray part is the lens part, Could look better if it was darker and had more of a goggle appeal to them.