I downloaded the trial version of CDX6 today, so far I have only looked at one of the new tools...the twirl tool.
After about 20 minutes of experimenting I came up with this. There is a fair bit of control when using the tool, but you have to work at it a bit.
My example isn't perfect but it could be handy for stylized waves or one of those hotel door handle message thingies.
Edit: As you can see, the result is vector.