While following 's post on odd cloud formations I decided I would do a little searching of my own. The first page of the Google Images Search reveals lots of cloud types that are worthy of investigation. However, I seem to be in luck as the structure in the lower right appears to be same as the one of which I am most interested.
Quite a few of these appear photoshopped, and while you might think this NSFW, I'd venture it is SFW because that one image could easily be a fidget spinner.
Clicking that last one and visiting the page it is from revealed not only the original source photo for the cloud on 's page but it also told me that it is a "Lenticular Cloud" and that author of the photo can be found at http://www.bbc.co.uk/news/uk-england-leeds-16302606.
Additional Source: http://www.boredpanda.com/strange-clouds/