Ooh, nice one - I got halfway down and thought "There HAS to be some Arabic script in here somewhere" and there it was, of course - I really like the scripts a lot of Indian languages are written in, too.
One thing worth mentioning is this graphic artist who does titles for books and things, where the word is visually palindromic, i.e. if you rotate the word by 180 degrees it looks exactly the same as it did before. The only thing I can think of off the top of my head that he's done is Clive Barker's
Arabat:
Look at the title, then try rotating it in your head half a turn.
