Tetris Ice Cube Trays: Love It or Leave It?

My first thought when I saw these Tetris ice cube trays was — do I have glasses big enough to play Tetris with my ice cubes? Dubbed Tetrice by Martin Zampach, these are a little more fleshed out than the Instructables version that yumsugar featured, but it's only a concept for now. Lets see, you could play a really freaking cold and low-tech version of the game, or pop 'em in a pitcher of drinks for your geeky guests, but I don't know that I'd buy these when I know I can make them. What do you think?