Here is a stylish and simple at the same time project called M-vironments. It was designed by the designer and architect Michael Jantzen.
It is a universal modular home that is not only easy to assemble and disassemble. You have the possibility to choose how it will look. Most of the modules can be placed anywhere, depending on the needs of the owner. The foundation of the M-vironments system is formed by rectangular panels that can be easily attached to any part of more massive modules. You can add modules and remove them. Change the sides of the windows and the angle of the entering sun light. You can customize almost everything.