This was enormously satisfying. Only saved about $8-9 and a trip to the hardware store (it was raining), but it was worth it. I was just sitting around stewing over my little projects and realized I had everything I needed to make a new metal tool in my apartment.
What's neat about this is that you're not actually sharpening an edge in the normal sense; You're very methodically creating an edge that is so blunted it becomes sharp... backwards.
Read on for the full experience of goblining out with makeshift tools on the kitchen floor