“T-shirts, get your T-shirts here! Every t-shirt you buy makes Pat grow in size and anger!” — Matt
The Best Friends' line of merchandise was first made available August 19, 2013. It was originally announced in their "Two Best Friends Sell Out Super Hard - Merch and t-shirts!" video, which was uploaded on the third of that same month. More merchandise was added November 27, 2013, and was announced with a new video,
The Best Friends Open a Hype-Ass Photo Studio!.
All of the merchandise for the Best Friends was sold on SharkRobot.com.