If you are looking for something fun to do with yard supplies... or you need filament in an emergency, consider trimmer string. I tried using some that was sitting around the house for ages.. First it popped and sizzled when I fed it. So I baked it for two hours at 170F. I followed Matterhacker's printing guide for nylon. The machine I'm using has an all-metal genuine e3d heat break, a clone heat sink, a genuine heater block and sock, and a 0.6mm brass nozzle. The glass bed was treated with a purple glue stick. I found that 260C hot end and 80C bed worked. I kept the speed down, limiting slic3r's max volumetric speed to 5 mm^3. The part is rather rough since I'm using a 0.6mm nozzle with 0.4mm layer height, but it held up at work today. If anyone else has tried this, I'd be interested in hearing about it!