Saturate the piece of furniture with water. An easy solution is to put it in the shower for 30 seconds, making sure every part is exposed to water.
Take it out of the shower and set the piece of furniture on the flat unopened trash bag.
Using 1-2 colors of one-step spray tie-dye, randomly spray the piece of furniture.
Allow to dry for about 1 minute and then, with a Dye-na-Flow color, drag the tip of the bottle in swirl patterns or designs on the piece of furniture. The concentrated color will bleed into the sprayed tie-dye. Continue with the designs until the desired look has been achieved.