It's not quite accurate to say that materials "produce" water. Water is a compound made of hydrogen and oxygen, and it's usually formed through chemical reactions. However, we can say that certain materials contain the elements necessary to form water.

Here are some examples:

* Hydrocarbons: These are molecules composed of hydrogen and carbon. When hydrocarbons are burned (combustion), they react with oxygen in the air, producing carbon dioxide (CO2) and water (H2O) as byproducts. This is why you see water droplets form when you burn a candle or a piece of wood.

* Organic compounds: Many organic compounds, such as carbohydrates, fats, and proteins, contain hydrogen and oxygen in their molecules. When these compounds are broken down, either through digestion or chemical reactions, they release water as a byproduct.

* Certain inorganic compounds: Some inorganic compounds, such as hydrates, contain water molecules bound within their crystal structure. These compounds can release water when heated or dissolved in a solvent.

Here are some other ways to obtain water:

* Condensation: This is a physical process where water vapor in the air cools and changes into liquid water. This is how clouds form and how rain falls.

* Desalination: This process removes salt from seawater to produce fresh water.

* Electrolysis: This is a chemical process where water is separated into hydrogen and oxygen gas by using an electric current.

It's important to remember that water is not created from materials, but rather formed through various chemical and physical processes that involve hydrogen and oxygen.