Tetris has appeared on practically every video game platform since it was introduced in 1985, and regularly pops up in the most unexpected places.
The block stacking phenomenon has appeared in Japanese comedy acts, on the side of a building in milkcrate form, as a set of shelves, as the basis for a Honda commercial, on a merit badge, off the side of Interstate 95 in Rhode Island, as a lotto ticket in Quebec, and on an episode of the Simpsons.
Tetris has spawned dozens of clones, appeared in other Nintendo games like Dr. Mario, and lives on today as Hexic, which was designed by Tetris creator Alexey Pazhitnov. In fact, most of today's popular puzzle games like Bejeweled can trace their roots back to Tetris, which is itself a sort of bizarre twist on Breakout, and that leads directly back to Pong, which takes us back to the beginning of time and makes our heads hurt.
Today it appears on your refrigerator as "Tetrius," courtesy of Art. Lebedev Studio in Russia. It can adorn your fridge this Christmas for only 278 rubles, which is about ten bucks. Check out the other products they offer, it's a bizarre collection of odd products that won't improve your productivity, but will make life a bit more fun.
Joystiq's stocking had better have one of these in it come December, or else we'll make a clone of our own.
[Thanks, laserboyjc! My bad for not thanking you earlier, great find]