How about an upside-down or blurred viewing experience www.ex-parrot.com/~pete/upside-down-ternet.html
Some FUNNY ssid's!!! http://blog.rootshell.be/2008/07/18/funny-ssid Some are used to SPREAD TRUTH SITE INFO!! (Which isnt too shabby really)
An other funny thing to do is name your network something like: FBI Security Van. That's what I do at least, lol!