I have been testing paint techniques, here marbling. I am doing some new 3D collages and I am trying out different textures.
If you don´t know what marbling is you can follow this link and see how to do it.
But basically I used spray paint to spray in a water bath , moved the paint around with a stick / pensel and the dipped the wood pieces into the bath. When you pull them up, the paint sticks.