I tried sparklers for fire starting. Rather hit and miss. Doubt a bottle rocket would work. But I've salvaged the powder out of a few firecrackers that had the fuses pull out while breaking up strings. Thought about mixing that with magnesium and aluminum filings in vaseline (to prevent oxidation of the metal) and using it for the devil's own PJ ball.

And a fire engine red MiG, which model?
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.