S5·E5 You and Your Big Shrunken Head

When the Douglases, Eb, and Arnold return from Chicago, Arnold becomes a gift-bearing pig. He gives Mr. Kimball a wristwatch, Lisa an expensive braclet, and Oliver a shrunken head. Arnold soon finds himself the target of every seller from Hooterville, Pixley, and Crabwell Corners, who want their hands on Arnold's inheritance.