Moonshine Still
The cheapest illegal setup on the island.
Where to buy it
El Cocodrilo (Black Market square, far east) sells the Moonshine Still package.
How to place it
Furniture: place it inside a house you hold the key for.
Moonshine Still Package 
Grape 
Water 
Empty Glass Bottle How to use it
4 Grapes + 1 Water + 1 Empty Glass Bottle → 1 Moonshine ($200). Grapes from the Vineyard, water from any Super Market or Gas Station, bottles from the Glass bottle stall at the Vineyard.
Moonshine Then
Sell Moonshine to a street dealer or back to El Cocodrilo.
Moonshine
TipAbout $30 of inputs per bottle. Nothing else in the game pays this well for five minutes of gathering.