I've been throwing these ads into the filter and they keep popping up with different URLs.
Fat Belly Ads, the one with the person pulling their pants waist out.
The diet-ads with the banana on it.
The ads for background checks featuring some fat guy with pizza, beer and lice in his beard. This one is especially heinous because it's not relevant to my site or to me. The ad itself is so ugly that showing it on my site is almost like defacing it.
Please no specific brand names. Please don't hijack into a discussion of how low your earnings are. This discussion is about ads you're tired of seeing on your site.