There are two still available. One is composite plastic the other is metal. And they run about $300-400. Here's a link:
http://www.************************************************************/product.asp?pf%5Fid=P900015&dept%5Fid=4086
I have only seen the composite plastic one in their magazine, but it will wear more quickly so the metal is a better deal if you are going to get one. I will mention that I have heard of these boomerangs catching and tearing the entire front bumper off. Personally, I don't think it's worth $360. Just drive more slowly.