For some time now, I've read stories and seen videos touting the amazing process known as Retrobrite. It seemed a bit complicated for me, but I learned of a different and much simpler way involving some "Developing Cream 40" from Sally Beauty supply and a blacklight. I just bought some partner phones from a member of this forum and they were pretty yellowed. I thought I'd give the retrobrite process a try. Here is my results. I promise there is no trickery and the two phones are the same phones in both pictures.

Before:
[Linked Image from i34.photobucket.com]

After:
[Linked Image from i34.photobucket.com]