A person applies paint designs to a red fingernail on a  plastic hand with a flexible black limb labeled "nail trainer".   A brown plastic hand with a black plastic arm appears with white fingernail tips and red fingernails.   A person's real hand appears and begins to apply white designs on one of the red fingernails on the plastic hand.   The scene then fades to a closeup of one finished red fingernail with a complete white design from the plastic hand.