I'd been looking for an affordable pitch shifting/formant-torquing effect for awhile - years ago I demoed Antares Throat and loved it, but it wasn't totally stable and required dongle authorization. Think this is the answer and more:
https://www.meldaproduction.com/plugins/product.php?id=MTransformer Very fun, basic functionality is great and can go very deep - I've been using it on vocals and monophonic sounds, but on the kvr forum there are a few examples of what it does on beats and polyphonic sounds.
Also currently only 16 USD...
Just throwing it out there in case anyone else has been doing weird, pitch-shifty vocals (I have used the pitch processing in Sonar so many times the calculations are second-nature, but it takes soooo long to process tracks back and forth between keys...maybe I'm nuts for doing it that way in the first place), plus the fact that all the parameters are automatable is a plus.