User blog comment:Cyan Wind/Featured User of January: New frontier/@comment-25603593-20141120035710

Not sure if this will be accepted. its worth a shot.

older versions of a few badges:

https://www.khanacademy.org/badges/just-getting-started-old

https://www.khanacademy.org/badges/making-progress-old

https://www.khanacademy.org/badges/productive-old

https://www.khanacademy.org/badges/hard-at-work-old

https://www.khanacademy.org/badges/work-horse-old

https://www.khanacademy.org/badges/magellan-old

https://www.khanacademy.org/badges/copernicus-old

https://www.khanacademy.org/badges/kepler-old

https://www.khanacademy.org/badges/newton-old

https://www.khanacademy.org/badges/apprentice-arithmetician-old

https://www.khanacademy.org/badges/journeyman-arithmetician-old

https://www.khanacademy.org/badges/artisan-arithmetician-old

https://www.khanacademy.org/badges/apprentice-algebraist-old

https://www.khanacademy.org/badges/artisan-I-algebraist-old

https://www.khanacademy.org/badges/artisan-II-algebraist-old

https://www.khanacademy.org/badges/artisan-III-algebraist-old

https://www.khanacademy.org/badges/journeyman-algebraist-old

https://www.khanacademy.org/badges/artisan-pre-algebraist-old

https://www.khanacademy.org/badges/apprentice-pre-algebraist-old

https://www.khanacademy.org/badges/journeyman-pre-algebraist-old

https://www.khanacademy.org/badges/artisan-trigonometrician-old

https://www.khanacademy.org/badges/apprentice-trigonometrician-old

https://www.khanacademy.org/badges/journeyman-trigonometrician-old

I am 99.99% sure this won't get accepted :) - worth a shot.