just use unprinted paper towels.

if you wanna get triple hippie, you can take newspaper, soak it in water, blend it until it's pulp, and then take a screen, pour it out over the screen (take some like 2x4s and make a box with the screen on the bottom) and then press it, and let it dry. fresh paper, and most if not all of the bad chem from the ink should be leeched out by the water.