Jaw bone of an Ass, what does it look like?

I was doing some web surfing today and came upon some articles about Sampson (http://en.wikipedia.org/wiki/Samson) slaying 1000 philistines (http://en.wikipedia.org/wiki/Philistines) with the "Jaw bone of an Ass" (). This brought back memories of my Sunday School days and made me wonder, what does an Ass Jawbone look like? I was thinking that it must be a pretty impressive thing to be such potent weapon. I did some searching and found this link with a picture of one:

http://dangerousintersection.org/2008/12/21/are-you-looking-for-a-gift-that-functions-as-both-a-musical-instrument-and-a-weapon/

Now that is no joke! I guess you could use that as a weapon!