The project page will show you the source.
The idea is originally from JunkIWant, Amazon Adgent and few other amazon widgets in Widgetbox Because non of those are open source(I might be wrong due to only 10 minute of research), this widget will be a cool amazon rotation widget with source codes and without all those annoying copy right stuff and Widgetbox's platform.

This is something I and Simon is working on. Currently it reads a amazon wishlist, and show the result in a rotating fashion. When mouse move over it, the rotation stops until the mouse moves out.
Simon did the Javascript section, I did the PHP part. It requires PHP5(I think).
I will explain throughly tomorrow. Here is the demo

Todo:
1. back and forward buttons
2. User can chose what to show and what not to show
3. Fix the strange elongation problem.
4. Extend it so it shows content related ads like Amazon Adgent
5. If possible, make it jQuery based
6. Drupal plugin!
7. Add to facebook!