As a kid, like most other kids I used to spend time learning to do weird things like write in reverse (as text seen in mirror-reflection), or write flipped text so that the person seeing the paper from the other side could read it.
Today I hit upon http://www.revfad.com/flip.html which can flip any text you give it. Like this ɐqɐuıɥqɐ. What it does is for every English character it finds another Unicode character whose glyph looks like the flipped version of that character.
I tried to demo my weird writing skills to Amit. This is what I got writing at about 0.25 times the normal writing speed.
Now my IM message is going to say ǝǝɹɟ ɯ,ı.