Feedburner will create an animated banner that cycles through the five most recent items on any RSS feed. I used it to create an IAB standard 468×60 banner promoting my tweets. There are excrutiatingly detailed instructions with screendumps over on my companion hub at hubpages (let them host the frakkin’ screendumps) but in a nutshell:
- Get your feed from wherever
- Burn it at feedburner
- Choose the publicise tag
- Choose Headline Animator option
- Configure your banner, if you use a custom background it must be a GIF hosted on the web somewhere (your blog would be fine)
- Activate, save and grab the code.
Here is my promotional banner for my twitter microblog: