I've been using a pair of Optic Nerve V4's (with Rx insert) that are...uh, I dunno, mirrored dark gray black something? Who cares, they were only $20!
And then, since I didn't have a night riding solution and my regular Rx glasses don't have nearly enough coverage to be effective against the wind (cue Bob Seger) I just picked up a pair of Optic Nerve Rodango's, which come with clear, yellow, gray, and a sort of amber/auburn/rose/copper lenses. Again, $20.
I have *no* self-control when it comes to a bargain.