Combine your longing for the good old days of early video gaming with your obsessive need to be on time, and you’ve got yourself a series of clocks made from old Atari cartridges selling for $20 apiece.
Available over at Etsy.com, the following game/clock combinations include Pac Man, Ms. Pac Man, Pole Position, E.T. The Extra Terrestrial, Donkey Kong, Demons to Diamonds, Swordquest Earthworld, Atari Casino, and last but certainly not least, Asteroids.
Atari Clocks [Etsy via Geeky Gadgets]
Or you could make your own (though there isn’t a HUGE cost savings with it)
http://www.instructables.com/id/Nintendo_Entertainment_System_Cartridge_Clock/
You can make a clock out of anything you can drill a hole into.