Found quite a few granular synthesis patches online, including 'sandpaper', 'granola', and 'Lyon Potpourri'. I couldn't get any of them to work satisfactorily, though.
I'm using the Cylon sound I used before. I think it was made by quantizing a human voice, so it's already been processed.
For whatever reason, Max crashed a lot while making these. I've never had that problem before.
The main advantage of granuar synthesis seems to be the ability to separate pitch and speed, which are otherwise always inversely related.