If not the biggest, Shapeways is probably the most well known 3D printing service and 3D digital models network around at this point in time. It is based in the US and basically offers online customers the possibility to model their own design, upload it to Shapeways, chose the materials to print it in and get an instant pricing quote. If accepted, the order will then be fabricated and shipped anywhere in the World. The website is not available localized in Italian but it does display prices specific for Italy (in Euro).