Aki Inomata used CT scanning to capture highly-detailed, 3-dimentional rendering of an unoccupied seashell. Using a 3D printer, she then created several prototypes of miniaturized Parisian apartments and Tokyo-type dwellings. These she gave to her hermit crabs to try out. Her crabs showed their approval for her architecture by promptly moving into their new homes after molting. Mind you, hermit crabs are not fickle when it comes to shelter. I’ve seen one living in a used cola can. If it’s sturdy and big enough, it’ll do. These days, her crustaceans are wearing the skylines of entire cities on their backs. Aki lives and works in Tokyo, Japan.
Take a look at her website.