A jewel
Mrs. Whembleton decided to have her portrait painted.
She told the artist, Paint me with diamond earrings, a diamond necklace, emerald bracelets and a ruby pendant.
But, Madam, you are not wearing any of those things.
True enough, said Mrs. Whembleton. If I should predecease my dear husband I know he will remarry right away, and I want his new wife to go stark raving mad looking for the jewelry!