Five years ago I put up a picture of Grimpoteuthis, the Dumbo Octopus, so called because it can 'fly' using its large 'ears' like Disney's Dumbo the Elephant.
It was so freakin' cute that it remains one of my most popular blog posts.
Recently Stephanie Bush put a picture of an octopus she photographed on Facebook, with the caption We found THE CUTENESS. And so she did - and it appears to be another Grimpoteuthis, not 'flying' but sitting on the ocean floor looking as cute as a button.
(Via Stephanie Bush)
Edit Jun 2015 to add: For video of Octopus adorabilis, see here. :)