No reason this set would have to be...
Some quick and dirty photoshops:
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Love all of those. Personally out of the three I would prefer the blue font because blue goes with most peripherals (unfortunately, as I think red, yellow and green look way cooler combined with black ;) ).
Anyway it looks slick. In general the HHKB/Topre keys are a good base. They look awesome in general, even with the simple black on dark grey.
Since I need a German layout though, I think I would prefer blank blacks (unless I could get a full set like the ones bakageta photoshopped) to replace the stocks and a hand full of say orange blanks to put in the ESDF cluster.
I also give my vote for awesome face over trollface. Both are cool but I do prefer positive stuff that makes me happy when I see it ;)
One more thing I would like to suggest: Deck Font keys or something similarly awesome.

just luuuuuv it :D
/Edit
The orange on black from dizzyone is also awesome. Would fit the geekhack theme as well, that's gotta be worth something.