Vortex Sound Research

There's no denying the at the Volca Drum is delightfully digital. I'd like to hear some ideas on how to add a bit of analog warmth. Interesting distortion pedals? Overdriven analog mixers? Feedback? Has anyone ever run it through a tube or plasma distortion? Or even some interesting settings within the Drum itself?

I'd love to see and maybe hear some of your experiments.