Here's a saw blade I made on my lunch break this afternoon. It scales to be about 5' in diameter. I didn't get a chance to measure it yet. The blade is made from a fender washer. I used a square to make the initial cross on the circle, then divided it into equal sections and used a dremel to cut the teeth.
Also included is another leaf spring I made yesterday. It is 1/32", (1 1/2" wide), and scale length of 5 1/2'. These will also be included in one of my scrap loads.
Don