Does anyone has any suggestions on how to create a tie-dye look with paint? I want to use three colors, fading from a dark purple on the bottom third of the walls to a light purple at the top. It seems like I remember seeing this done on some show, but can't remember which one. I think I remember that you have to use three different rollers and paint the coats when the paint is still wet so that the colors will blend/bleed/fade easily. Any tips?