Wonky eye option to go with the Lil' Monster puppet pattern available at www.liveactionpuppets.com  This puppet eye requires ¼-20 (5/8" long) nylon hardware which you can buy at McMaster Carr https://www.mcmaster.com/products/bolts/hex-head-screws~/plastic-hex-head-screws/?s=bolts.  You also need a ¼-20 tap from the hardware store to tap the threads into the printed eye.  I also recommend you make a plastic washer from some scrap plastic to help stabilize the eyes and prevent the bolts from popping through your fur or use the included washer file to print a matching washer.   Splinter-removing forceps can help with removing the support material from the tapping holes and back quadrants.  MicroMark carries a quality splinter forceps.  Sand eye fronts and spray paint matte white to finish.  My blog post contains more detailed instructions.  https://www.liveactionpuppets.com/the-3d-printed-wonky-eye/