Pencils and notebooks resembling President Barack Obama’s 2008 campaign ads have been sold in at least one Columbia school and other public schools, causing the company that distributes the materials to travel around the state yanking the supplies out of machines. “Don’t be mad at us,” said Greg Jones, a sales representative with Pencil Wholesale. “It was a total accident.” Pencil Wholesale distributes supplies to six Columbia schools: Parkade Elementary, Cedar Ridge Elementary, Paxton Keeley Elementary, Mill Creek Elementary, Smithton Middle School and Hickman High School, said Linda Quinley, the district’s chief financial officer. At Mill Creek, at least one...