I picked it up at GoodWill for $7
It’s one of the stranger looking human interface devices I’ve seen.
It reminds me of blinky the three-eyed fish on the Simpsons.

It’s interesting because it’s the only game controller I’ve seen designed for strategy games.
Here’s the spiel on it.
“The Strategic Commander is designed to complement a standard mouse/keyboard setup for Real Time Strategy games. It features a total of 6 programmable command buttons, 2 zoom buttons, 3 shift buttons, a macro record button and a 3-point configuration switch. The device also has three movement axes; X, Y and Z (rotation). Through extensive configuration of the shift and command buttons, it is possible to create a total of 24 different commands per configuration.
The Strategic Commander is a highly ergonomic device, and resembles a large mouse in shape, contoured for the left hand. It has an upper section attached to a base. On the upper section, the programmable buttons mentioned above are located near the tips of the pointer, middle and ring fingers for quick access. Three buttons are located near the thumb in an arc.
A feature of the device is that the upper section is also a 3-axis motion controller. It allows motion in the X, Y & Z axis (possibly corresponding to Forward, Backwards, Strife left & right, Turn left & right). This made it an ideal companion for FPS and similar games; because you can aim weapons or look up and down with the right hand while simultaneously slewing position with the left hand, and change weapons etc. with the left finger buttons.”It works as advertised but it seems kind of awkward (it’s really only worth it with 3D RTSs) and so far I’m still faster on my keyboard but I think in a more 3D RTS (I’ve just tested it on the first 3 C&Cs) it would prove very useful. And it just looks plain cool.
Here are a couple of pics of it;