Credit to Noah for inspiration of our ark prop! With a door that drops down that's attached via a magnet, so you can change it as you please.
 
12mm high quality MDF, left unpainted ready for you to get your paintbrush out and decorate to match your scheme. 
Feet are hinged with a cross section slot in each foot for an added weight or sandbag to be attached for extra security if required (see photo attached)