I've managed to get terrycloth wristbands to work almost acceptably (probably a worse surface than Cordura). 110 count mesh screen, Nazdar 9500 series ink (waterbase FTW), line art without subtle detail rather than a halftone, whatever durometer squeege I had available. A similar solution worked on corrugated cardboard. I didn't thin the ink at all. Be sure to get a board under the part your printing on, don't have extra layers of fabric in there.