Mac's first t-shirt reads "Whiskey Dick's, Liquor in front, poker in back"
Charlie's seeming inability to understand cursive handwriting further alludes to his illiteracy; a long running gag on the show.
Mac's last t-shirt is a shirt from Watersmeet, MI. The townships school mascot is the Watersmeet Nimrods. The school is approximately 50% Native American and was featured on The Sundance Channel series, Nimrod Nation.
Eduardo Sanchez directed The Blair Witch Project.