Characters with precise internal anatomy are important in film and visual effects, as well as in medical applications. However, setting up detailed anatomical models has been a difficult task, especially for simulation. We demonstrate MyCorporisFabrica(MyCF), the first assistant tool for modeling and simulating anatomical structures such as bones, muscles, viscera and fat tissues. This is done by transferring a reference anatomical model from an input template to an arbitrary target character, only defined by its skin. Given the target character in a similar pose as the reference anatomy, and optionally a distribution of fat, the method runs automatically. This allows to quickly generate anatomical models for a large range of target characters, while maintaining anatomical constraints. Moreover, the tool includes a novel anatomy knowledge base designed to help selecting anatomical entities based on their contribution to physiological functions. Finally, the knowledge base contains mechanical data used to set up different mechanical models of the selected entities, which we export to a simulator. This dramatically eases biomechanical modeling and makes it possible for non-expert users to enter that field. The application works in a web browser. In this 20 minute talk, we demonstrate this technology and detail a practical example.