Nursery Rhyme Humpty Dumpty Window Mural. Humpty Dumpty sat on a wall........These Nursery Rhyme Wall Window Murals are a very clever way to add window to your room. Three designs available - Humpty Dumpty, Hey Diddle Diddle, and Hickory Dickory Dock. These window wall murals measure 29" high x 19" wide. These window murals are made with the highest quality and easy to remove materials - so don't worry about scrapping, steaming, or spraying with adhesive remover. These wall window murals are special orders, please allow up to 4 weeks for delivery.