So the site, Regretsy, has been scouring the design blogs for a few weeks now. I started following them on Facebook and look at what they had to offer today.
An anonymous shop with no information about the cards, who makes them, or anything. Maybe the mystery makes it so appealing, or that they have been inspired by current events, or maybe it's because they're hysterical.
This is probably the best Christmas illustration I've ever seen.