Let's make vinegar. maybe.
My mom is a vinegar fan, and has a big glass container with a mother in the dark side of the kitchen.
As far as I remember, the mother is in a 2 gallon container filled with spring water, an apple cut in pieces and half a pound of brown sugar. Then you just wait for the mother to do it's magic, just keep it away from direct sunlight, and keep it covered otherwise wild yeast and bacteria may get into your vinegar, spoiling it. Once the apple has disintegrated and the brown sugar is gone you are left with apple vinegar.
Then you repeat the process for a new batch of vinegar, be careful not to wash the mother. With time the mother will grow, not a biggie, you can take pieces of that and give it to your friends for them to start their own vinegar production.

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