Klaus Reichardt's Teapot

Origin
Since about the 1990s urinals that use no water to flush have been available. They were first invented by a German named Klaus Reichardt, who secured his innovation with several patents. Waterless urinals can save between 15,000 and 45,000 US gallons (57,000 and 170,000 l) of water per year, depending on the amount of water used.

Effects
It produces an infinite amount of tea when brewed with. When drank, the tea will turn the user's urine into tea itself.