The Gregg Museum of Art & Design at NC State University has a great collection of folk arts. The strongest section is in ceramics, with stupendous representation from the NC wood-fired, salt and alkaline glazed traditions. There's this 1868 Hartsoe Alkaline glazed jug, this 19th cent. jug with kild-drip, this Hancock Half-Gallon jug, this Randolph Cty salt-glazed jug with ashy shoulder, and then the moderns: Burlon Craig, Vernon Owen, Mark Hewitt. There are also great photographs, weird furniture, outsider critters, and more. There isn't a good browse function, so you need some idea of what you want to search for.