A short item description reads: "Looking for a new French toile pattern blanket for your couch? Something that is nice flowery and with mildly offensive genitalia to your mother once she stares at it too long? This subtle floral penis pattern is for you!"
The fabric design is believed to be the work of Coey Kuhn (coeykuhn.tumblr.com) from Columbus, Ohio, who touts it as a "free penis pattern" for blogs.
Despite the graphic nature of the image, Redditors thought it was hilarious with some desperate to know where they could buy one for themselves.
One user, known only as taintsweater, said it would make the perfect wedding present for a friend.