Xlr8yourmac is always a good source for dangerous mods for your hardware...
This time, they report that there is a new version of a Voodoo 3 clocker. It patches your Voodoo 3 ROMs to increase the clock speed.
From the README (I know you won't read it): " Use this software at your own risk. If you aren't a risk taker and if you really can't afford to kill your Voodoo3 card then please don't use this software." Gotta love it...