Comedy Central is celebrating the 15th season of South Park with 1.5 million bags of Cheesy Poofs. Bags of Cartman’s favorite snack will be yours to purchase exclusively at Wal-Mart in coming months. Cheesy Poofs are being manufactured by Frito-Lay. They will cost $2.99 for 2-and-3/8-ounce bag. South Park returns on October 15.