“God is in the details.”
Edge painting by House of Monks
This quote, most notably attributed to German-born architect Ludwig Mies van der Rohe, is a common belief held amongst designers[or misconception, if you believe instead that the devil is in the details ;)]. The best example of an obsession with perfecting a design down to the last bolt, are these letterpressed business cards by House of Monk, whose edges are painted to match the top face of the card after printing and cutting.
For information of the process and materials, visit http://www.beastpieces.com/2009/02/edge-with-edge/. Enjoy!