Virtual designs into physical objects/Contract manufacturing facilities
A group of people all wanting the same item to be made could get together and send the details of the design to a large-scale contract manufacturing and assembly company to make use of specialist facilities and economies of scale.
This might be a 'base item' and each individual then customises and finishes off the product according to their tastes. The item could be anything from a car, a mobile phone, a computer or an entirely new machine or device that has only recently been thought up...
See also Wired article "In the Next industrial revolution, atoms are the new bits". Accompanying video
See also Joy de vivre concept.
At some stage open-source systems will likely compete with this type of manufacturing too, bypassing the commercial aspect - however it makes some interesting large-scale things possible right now.