Looks like Urban Boundaries has their special going again.
A 3-pack of mirrored Aviator sunglasses: http://www.urbanboundaries.com/Premium-Full-Mirror-Lens-Aviator-3-Pack-p/59323packpromo.htm
(silver frames) for $5.95 (that's under $2 per pair).
shipping is free with this good promo code: FREE2010
If you're ordering multiple items it may be better to use promo code: good20
to save 20%
I've ordered from them before and the glasses are a good value for the price
, they're not Ray-Bans, but they