This is my revamp of the classic
There is little you can do with such a classic emoticon that already works so perfectly. I've completely reworked the shading to give it a more updated feel and only slightly played with the face.
I've placed a much stronger emphasis on the eyebrows giving it an angrier look, but I believe that when ever you use this emoticon its generally to portray an "You idiot" or "WTF are you talking about?" kind of expression, not a "I'm lost" one. I've also removed the nose because like any good emoticon it doesn't need one and try to blend in the eyes just a little.
It is somewhat similar to another version around, but with some clear differences, especially to the detailed eye.