Apparently, you can find darn near anything on eBay.
When I enter certain search keywords in a Google search box, it seems like I see an endless stream of eBay ads - promising that I can find what I'm looking for, no problem! Unfortunately, sometimes the results are comical if not downright disgusting - and they show the weakness of the ad selection techniques.
Apparently, searching Google for 'used anything' has a pretty good chance of turning up these gems.
Here are a few "interesting" search phrases, and a snapshot of the accompanying Google ads that appear on the search results pages: