Well I've been wanting to make a Stargate Horus costume for some time now- except I want it to have a full animatronic head! I already have the servos and I've even got all the movements/mechanics figured out. Of course the head will be made mostly from cardboard.
Heck, I'll even do a tutorial.
The other things that could be done with this controller would be an R2 (who wouldn't want one) or even something like a full animatronic Predator.....
Here's the skinny on the controller:
It has eight analog inputs, eight digital outputs and four servo outputs. Pretty cool stuff.