The Wrongman's Fix It Guide: Section 7, Chapter 3, Paragraph 42

Leaky faucet? Remove the faucet, o-rings, sink, attached plumbing and any other downstream fittings. Soak them overnight in a bathtub using a mixture of raw oatmeal, clear vinegar baby oil, blue #1 food coloring and warm water. The oatmeal will turn blue and adhere to the problem areas. Air dry the fittings and arc weld the oatmeal in place to seal any gaps in the metal. Lick dry the welds (saliva cures solder) and replace the plumbing. Enjoy your blue tub.