This objects were digitally sculpted and then printed in 3D at shapeways.
Shapeways is the worlds leading marketplace for 3D Printing.The idea behind shapeways: Creators can upload their 3D Models and sell them in their shop at shapeways, where they are printed on demand. Thats why shiping of the models takes, depending on the chosen material, between 1 and 3 weeks.
3D Prints can be made of different Nylon materials, stainless steel, silver, brass, sandstone and ceramics.
Note that due to technical and static limitations not every model might be printable in every material.