Craig,
Ah yes, the sucker play!
I use that one often, with alternate fairways, etc.
As Tom mentioned, loading up one side of the green with bunkers forces play to the "safe" side. Its always kind of cool to make sure that easy chip shot has a steep downhill contour to make it difficult.
I also think one really deep bunker plays with the mind. (Think Royal St Georges No. 4)
As posted on an Augusta thread, a wide fw with a creek beside it like ANGC 13 can play with ones mind.
A false front green makes the golfer take an extra club to clear, and then can make the downhill approach putt come up short, in an effort to avoid de-greening it.
Given how much putting plays with the mind anyway, I think slightly varying the green contours on each green (I will leave it to supers or nature to vary speed) can make a golfer question each short putt. (I didn't need to leave the last one that far outside the hole! ARRRRRRGG!)
Of course, contrary to popular opinion, I really think there is not much a gca can do to torture most golfers more than they already torment themselves.