Okay, let's give this a shot.
What is an image worm?
An image worm is made up of many images, which seamlessly fade fade from one to the other.
What are the rules?
Before starting work on an image, you post in this thread that you are starting to work.
Make sure that no one else is currently working on an image.
Your image must have a seamless transition with the one before it.
You can not post 2 images in a row, unless there has been some weird twist of fate.
Post the finished image in this thread, and it will be added to the worm thread.
The image size MUST be 400x300
I suggest you use imageshack for hosting, but it's up to you.
Please keep in mind all the general forum rules etc. (No illegal or explicit content etc.)
Be creative and have fun!