Minor Goddesses

While reading a Poe story, I came across the name of a Roman goddess that I had never heard before. Laverna, the goddess of ill-gotten gain, is celebrated by pouring libations using the left hand. I wonder what a goddess of cheats would look like. I was unable to find a satisfactory image of her, though her name seems to have been appropriated into various tarot decks and children's fairy stories. I'm also surprised I haven't heard of her before now. Surely the impostors and counterfeits with which I am so intrigued pray to her while doing their deeds!