Go to Google and search for [school holidays] and at the top you will see a featured snippet, which now includes both the textual answer and an image. If you see what I do, you will see that the image promotes €200 off a vacation package.
Here is the featured snippet:
The interesting part, if you go to the page where the image is, you will see a very text heavy page around UK based school holiday dates. There is an image ad in the middle that takes you to an advertiser. I doubt, but who knows, that this featured snippet spam was intentional.
Either way, after Rick_BarK reported this on Twitter to Google's Gary Illyes, Gary said on Twitter that he filed a report about this:
Thanks, filed a report
— Gary "鯨理" Illyes (@methode) July 12, 2017
I wonder if we will see an influx of these attempts to spam the graphic used on the featured snippets?
Forum discussion at Twitter.