Found some really cute, really inexpensive vintage sunglasses on Etsy.
This pair can be found at WhitebirdDesign's shop.
This pair of French vintage shades was listed by annemarieaustin.
This pair only looks expensive. You can find them at sickboyvintage's Etsy shop.
While they're not as inexpensive and you may not feel as 'authentic,' American Apparel also has some pretty incredible vintage-styled shades.
Am Appy gives free shiping on Orders over $75 and you can get %15 off if you sign up or the mailing list. They also have a really good online sale right now.
That's it for now.