Preston Sturges and Cecil B Demille Collection individual case art?
 

Does anyone know where I could get box art for each of the films in these sets individually. I hate having them just stuck in the set. The films are:
The Great Mcginty, Christmas in July, The Great Moment, Hail the Conquering Hero - Sturges

Sign of the Cross, Four Frightened People, Cleopatra, The Crusades, Union Pacific - Demille

Any help anyone could offer would be appreciated.