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Pasta Making Class
Go to a R/C model airplane hobby shop. They sell a weight for a fuel tank pick up made from brass or bronze. They also sell silicone tubing fuel line. Inverted flight still requires engine to receive fuel. I have been doing this for years. Thought it was common sense.
Brass (copper&Zinc) and bronze(copper&Tin) both, metal alloys of copper, are used on ships exposed to the corrosive atmosphere of the sea. They will form patinas that protect the metals from corrosion. A word of advice, "Try not to eat cleaning compounds." Ammonia and chlorine are both poisonous cleaning chemicals. If you mix Bleach with Ammonia they will react and give off chlorine gas which will, in a high enough concentration, kill you graveyard dead. Silicone tubing is relatively cheap.
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