Here are some recent and current container based and conventional built projects: Click on an image to enlarge.
Accommodation for 2 persons as a granny flat or AirBNB!
The study / table desk converts to a queen bed. What's on the desk stays on the desk on the floor!
It opens up to the queen bed. The mirror wall above make the room look twice as long!
The complete kitchen
The bathroom (shower, toilet, basin & storage.)
A one bedroom house in a 40 ft container