You can see it had a load of dog specific image sets added to it (Synsets new in ILSVRC2012). What I don't know is whether it's possible to remove all the dog images and remain with the more varied image sets.
Another easy way to play with this is the DeepDreamer mac app (http://realmacsoftware.com/deepdreamer/), although it has some size limitations unless you purchase it ($15).
You should also make it clear that processed images are publicly visible (if, indeed, they are).