If you hate the taste of tap water, Studio Formafantasma has your back. Their collection of engraved crystals are combined with copper and activated charcoal to make the tap water taste better.
Called Still, the Studio Formafantasma collection consists of two differently patterned engravings. One focuses on a "contemporary microscopic view of bacteria found in rivers," where as the other is a formerly held representation of oceanic organisms from the 1800s.
Created in collaboration with Viennese firm J & L Lobmeyr, Still is essentially a very fancy water purifier decorated with representations of the things you are trying to filter out. The crystal collection was inspired by Oswald Haerdlt's Candy Dish from the year 1925.