I've been mostly doing this recently.
The launch gig for this will be an all-day improv session with lots of people and whoever feels like joining, and happens next Sunday the 27th of January 2013:
The compilation will come in the form of a digital download attached to one of 100 A3 prints (available at the gig for €5 each) by Brigid Power Ryce, Kaiser Caimo, Aaron Coyne and myself. Here's the image I'm contributing:
I am tired and excited!