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Benchmade knives. Now there's a can of worms! I was watching an episode of Forged in fire, and there was a guy who was really good, and he used a cast iron frying pan with a hole cut in the middle for charcoal, and a hair dryer and hose to connect to the hole. The all you'd need is an anvil, and a hammer, and an angle iron, and a belt sander, and and and... Never mind.
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I meant angle grinder, of course. And I suspect I've gone way off topic, although I suppose a charitable-minded person might let it slide, regarding my burbling as part of me introducing myself, warts and all.