While building a Flex application for Facebook (with the goal of maintaining Facebook's look-and-feel), I realized I wanted to mimic the Facebook loading indicator when the app starts:
Googling around, I was surprised not to find any existing source or SWFs. It wasn't hard to bring the animated GIF above into Fireworks, export to SWF, retrace in Flash as vector and tween. It was, however, a menial task that should only ever be done once on this planet, so I'm posting my files for all to use and abuse. These will work for Flash as well as Flex: