The Atari VCS was released with a slew of different controllers: The classic red-button joystick, the paddle controllers, the driving controllers,  and the keypads just to name a few.

The CX40 (Joystick)

The CX40
One binary way to press
The red button

The CX40
Eight digital ways to push
The bounds of gaming

The CX30 (Paddle)

The CX30
A potentiometer
Lots of potential

The CX30
The only way to play a
Precise Breakout game

The CX20 (Driving Controller)

The CX20
Drove me nuts, looking just like
A CX30