The technology behind 3D printing continues to change the world of fitness equipment, and while we have seen development in the printing of various parts in the design stage, now Giant Bicycles is using 3D printing technology for the bike saddles.
However, at this point the selective laser sintering (SLS) is mostly being used to create full size prototypes rather than finished goods. But it does suggest that in the future you could always pick a saddle at a shop and have it printed while you wait.
[Via PDDNET: New Saddle for Giant Bicycles Uses 3D Printing Technology]