I'm not quite sure how you would actually play a game of Tetris with ice cubes, but if you put a little food coloring in there and pop them into a glass—you will have yourself a frosty drink that can only be compared to the lego ice cube tray in terms of sheer geekyness. Unfortunately, that wont happen anytime soon—these are only concepts at the moment. [Martin Zampach via NOTCOT]