Check out this project by LOT-EK  

Text from the architects;

24 shipping containers are retrofitted and transformed into PUMA CITY, a transportable retail and event building that is travelling around the world along with the 70 foot long Puma sailing boat, il Mostro during the one year long 2008 Volvo Ocean Race, just started in Alicante, Spain in early October.

The building is fully dismountable and travels on a cargo ship along with the sail boats, it will be assembled and disassembled a number of times once it reaches the different international harbours.

Puma City is a truly experimental building that takes full advantage of the global shipping network already in palce. At 11,000 square feet of space, it is the first container building of its scale to be truly mobile, designed to respond to all of the architectural challenges of a building of its kind, including international building code, dramatic climate changes, plug in electrical and HVAC systems