By Deepa Seetharaman SAN FRANCISCO (Reuters) – Amazon.com Inc will offer 3D printing services that allow customers to customize and build earrings, bobble head toys and other items from third-party sellers using a new personalization option on its website. Before it is printed by one of Amazons sellers, users can customize a product like as a bobble head figure by changing its skin and eye color, hair style and outfit, Amazon said. The customization is something were keenly interested in, said Petra Schindler-Carter, director for Amazon marketplace sales, speaking in an interview. Well always look for new applications for that. Amazon, which has more than 240 million users, has expanded its marketplaces division to include new areas such as fine art and wine.