Find an old nylon stocking. Drop a scoop of grass seed in the toe. Stuff a handful of mulch in next. Tie it off tightly in a knot, so it can't shift around in there. Paint on a face. Or draw one on with a Sharpie. After the face is dry, place the chia pet (knot side down) in a little saucer of water. Keep him wet and in the sunlight and the grass seed will sprout up through the stocking.