Damjan Stanković's Cipher uses a unique mosaic pattern that interacts with liquids to create textual signs that indicate what's in the cup.

‘Cipher' is a “psychic” drinking glass created by Serbian designer Damjan Stanković. The glass, when empty, looks like a colorful tumbler but shows its magic once a colored liquid is poured into it. When the glass is filled with orange juice, milk, Nescafe or Coke, the colorful patterns and the empty spaces combine with the liquid's color to form a textual sign of the drink inside it.

Stanković explains the concept behind his mystery glass:

Each side of the glass is reserved for a specific drink. … The Dekrypt glass though complex in appearance in fact runs on a very simple idea. Differently colored shapes are scattered across the glass surface in a seemingly random pattern, however their position is hardly accidental. The true purpose of the glass mosaic is revealed when colored liquid is poured into it. The pattern of shapes and empty spaces on the glass combined with the color of the liquid inside the glass end up forming a textual sign, revealing what exact drink or refreshment you are having, with each side of the glass reserved for a specific drink.

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