Here's one...
http://cgi.ebay.com/ebaymotors/Tail-...spagenameZWD1V
There are about a dozen on eBay right now... I think I paid about $114 shipped for them. I like them since they're stainless steel.
Now, a word of note, the bracket they sent with them is also stainless but wasn't bent properly to fit right. I just used a vice to straighten it out and then rebend it to the contours I thought it should have and it worked out great and doesn't rub my paint anywhere.