I was asked to make Reich-o-Matic by composer Bill Brown as a way to generate some interesting percussion lines with a Kontakt script.  What this script does is take a single held note, and with a range of options set to your liking, it decides whether to play that note in a duple or triple meter pattern.  It re-makes this decision every beat, so your rhythm naturally floats between time formats.  For every note you hold, it works independently, letting some of the duple and triple meter times rub against one another. 

The download bundle includes a short manual for getting into all of the settings.