Electric car heaters?

I tried googling but came up completely empty.. I want to buy an electric heater (kind of like a hair dryer) for inside the car just to use as the car's warming up and I sit there shivering. I swear I've seen one in a Sharper Image mag or something, anybody know where I could order one?

dunno, man... I know that there are things like that out there for race-only vehicles, and custom cars (dune buggies, etc) that are electric...

maybe Jegs (http://www.jegs.com) might have something?

Or are you looking for something small, like a hand heater? I'd have no idea there.