Shipping containers are great for living in, but how about working in one? Given the enormous success of low-cost, environmentally-friendly recycled shipping container homes, some architects and designers are extending their scope to include commercial buildings also. Many of these buildings are brand new or even still in the planning stages, but some have existed for many years because they were the cheapest, most readily available option. These buildings prove that necessity truly is the mother of invention.  Click the thumbnails below for more images of and information on these amazing designs: