Ok guys check this one out.....goto the link below
www.saolim.tk
Click on the south shaolin temple on the left.
It's an article on the recent discovery of the southern shaolin temple and it's rebuild. good read. (Fellow SDer's it mentions GM Sin's stele he placed as tribute.)
Scroll down the pics until you get to the one with some old weapons excavated from the original site....
Lo and behold there sits a SAI!
I read an article in kungfumagazine a while back that talked about the use of 'whips' by law enforcement in old china. They were called whips because that's what you did with em, whipped the crap out of someone. Anyway, the pics they had in the article was basically a sai, they were different shapes and sizes but they were all identical to a regular ol sai.