This was a crazy random painting thing. Started with a piece of 2 X 2 feet 1/4 inch birch plywood, which I primed white. Then put some spray paint on there, some random splashes of black and red house paint, pour motor oil on there - stuff like that. I moved the board around to let paint flow, put spray paint on top of the wet house paint, even set the oil on fire at some point. Had to wipe the soot off. Anyway, after it mostly dried, I ended up wiping off the excess oil. Later, I started adding some acrylic paint with a paint brush, basically just pulling out stuff that was already there.